21479520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 68699232

約数和(自身を除く): 47219712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 73, 80, 96, 120, 146, 160, 219, 240, 292, 365, 438, 480, 584, 613, 730, 876, 1095, 1168, 1226, 1460, 1752, 1839, 2190, 2336, 2452, 2920, 3065, 3504, 3678, 4380, 4904, 5840, 6130, 7008, 7356, 8760, 9195, 9808, 11680, 12260, 14712, 17520, 18390, 19616, 24520, 29424, 35040, 36780, 44749, 49040, 58848, 73560, 89498, 98080, 134247, 147120, 178996, 223745, 268494, 294240, 357992, 447490, 536988, 671235, 715984, 894980, 1073976, 1342470, 1431968, 1789960, 2147952, 2684940, 3579920, 4295904, 5369880, 7159840, 10739760, 21479520]

約数ペア:

[(1, 21479520), (2, 10739760), (3, 7159840), (4, 5369880), (5, 4295904), (6, 3579920), (8, 2684940), (10, 2147952), (12, 1789960), (15, 1431968), (16, 1342470), (20, 1073976), (24, 894980), (30, 715984), (32, 671235), (40, 536988), (48, 447490), (60, 357992), (73, 294240), (80, 268494), (96, 223745), (120, 178996), (146, 147120), (160, 134247), (219, 98080), (240, 89498), (292, 73560), (365, 58848), (438, 49040), (480, 44749), (584, 36780), (613, 35040), (730, 29424), (876, 24520), (1095, 19616), (1168, 18390), (1226, 17520), (1460, 14712), (1752, 12260), (1839, 11680), (2190, 9808), (2336, 9195), (2452, 8760), (2920, 7356), (3065, 7008), (3504, 6130), (3678, 5840), (4380, 4904)]