21409440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 75188736

約数和(自身を除く): 53779296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 47, 48, 52, 60, 65, 73, 78, 80, 94, 96, 104, 120, 130, 141, 146, 156, 160, 188, 195, 208, 219, 235, 240, 260, 282, 292, 312, 365, 376, 390, 416, 438, 470, 480, 520, 564, 584, 611, 624, 705, 730, 752, 780, 876, 940, 949, 1040, 1095, 1128, 1168, 1222, 1248, 1410, 1460, 1504, 1560, 1752, 1833, 1880, 1898, 2080, 2190, 2256, 2336, 2444, 2820, 2847, 2920, 3055, 3120, 3431, 3504, 3666, 3760, 3796, 4380, 4512, 4745, 4888, 5640, 5694, 5840, 6110, 6240, 6862, 7008, 7332, 7520, 7592, 8760, 9165, 9490, 9776, 10293, 11280, 11388, 11680, 12220, 13724, 14235, 14664, 15184, 17155, 17520, 18330, 18980, 19552, 20586, 22560, 22776, 24440, 27448, 28470, 29328, 30368, 34310, 35040, 36660, 37960, 41172, 44603, 45552, 48880, 51465, 54896, 56940, 58656, 68620, 73320, 75920, 82344, 89206, 91104, 97760, 102930, 109792, 113880, 133809, 137240, 146640, 151840, 164688, 178412, 205860, 223015, 227760, 267618, 274480, 293280, 329376, 356824, 411720, 446030, 455520, 535236, 548960, 669045, 713648, 823440, 892060, 1070472, 1338090, 1427296, 1646880, 1784120, 2140944, 2676180, 3568240, 4281888, 5352360, 7136480, 10704720, 21409440]

約数ペア:

[(1, 21409440), (2, 10704720), (3, 7136480), (4, 5352360), (5, 4281888), (6, 3568240), (8, 2676180), (10, 2140944), (12, 1784120), (13, 1646880), (15, 1427296), (16, 1338090), (20, 1070472), (24, 892060), (26, 823440), (30, 713648), (32, 669045), (39, 548960), (40, 535236), (47, 455520), (48, 446030), (52, 411720), (60, 356824), (65, 329376), (73, 293280), (78, 274480), (80, 267618), (94, 227760), (96, 223015), (104, 205860), (120, 178412), (130, 164688), (141, 151840), (146, 146640), (156, 137240), (160, 133809), (188, 113880), (195, 109792), (208, 102930), (219, 97760), (235, 91104), (240, 89206), (260, 82344), (282, 75920), (292, 73320), (312, 68620), (365, 58656), (376, 56940), (390, 54896), (416, 51465), (438, 48880), (470, 45552), (480, 44603), (520, 41172), (564, 37960), (584, 36660), (611, 35040), (624, 34310), (705, 30368), (730, 29328), (752, 28470), (780, 27448), (876, 24440), (940, 22776), (949, 22560), (1040, 20586), (1095, 19552), (1128, 18980), (1168, 18330), (1222, 17520), (1248, 17155), (1410, 15184), (1460, 14664), (1504, 14235), (1560, 13724), (1752, 12220), (1833, 11680), (1880, 11388), (1898, 11280), (2080, 10293), (2190, 9776), (2256, 9490), (2336, 9165), (2444, 8760), (2820, 7592), (2847, 7520), (2920, 7332), (3055, 7008), (3120, 6862), (3431, 6240), (3504, 6110), (3666, 5840), (3760, 5694), (3796, 5640), (4380, 4888), (4512, 4745)]