21539760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 160

約数和(自身を含む): 74995200

約数和(自身を除く): 53455440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 41, 44, 48, 55, 60, 66, 80, 82, 88, 110, 120, 123, 132, 164, 165, 176, 199, 205, 220, 240, 246, 264, 328, 330, 398, 410, 440, 451, 492, 528, 597, 615, 656, 660, 796, 820, 880, 902, 984, 995, 1194, 1230, 1320, 1353, 1592, 1640, 1804, 1968, 1990, 2189, 2255, 2388, 2460, 2640, 2706, 2985, 3184, 3280, 3608, 3980, 4378, 4510, 4776, 4920, 5412, 5970, 6567, 6765, 7216, 7960, 8159, 8756, 9020, 9552, 9840, 10824, 10945, 11940, 13134, 13530, 15920, 16318, 17512, 18040, 21648, 21890, 23880, 24477, 26268, 27060, 32636, 32835, 35024, 36080, 40795, 43780, 47760, 48954, 52536, 54120, 65272, 65670, 81590, 87560, 89749, 97908, 105072, 108240, 122385, 130544, 131340, 163180, 175120, 179498, 195816, 244770, 262680, 269247, 326360, 358996, 391632, 448745, 489540, 525360, 538494, 652720, 717992, 897490, 979080, 1076988, 1346235, 1435984, 1794980, 1958160, 2153976, 2692470, 3589960, 4307952, 5384940, 7179920, 10769880, 21539760]

約数ペア:

[(1, 21539760), (2, 10769880), (3, 7179920), (4, 5384940), (5, 4307952), (6, 3589960), (8, 2692470), (10, 2153976), (11, 1958160), (12, 1794980), (15, 1435984), (16, 1346235), (20, 1076988), (22, 979080), (24, 897490), (30, 717992), (33, 652720), (40, 538494), (41, 525360), (44, 489540), (48, 448745), (55, 391632), (60, 358996), (66, 326360), (80, 269247), (82, 262680), (88, 244770), (110, 195816), (120, 179498), (123, 175120), (132, 163180), (164, 131340), (165, 130544), (176, 122385), (199, 108240), (205, 105072), (220, 97908), (240, 89749), (246, 87560), (264, 81590), (328, 65670), (330, 65272), (398, 54120), (410, 52536), (440, 48954), (451, 47760), (492, 43780), (528, 40795), (597, 36080), (615, 35024), (656, 32835), (660, 32636), (796, 27060), (820, 26268), (880, 24477), (902, 23880), (984, 21890), (995, 21648), (1194, 18040), (1230, 17512), (1320, 16318), (1353, 15920), (1592, 13530), (1640, 13134), (1804, 11940), (1968, 10945), (1990, 10824), (2189, 9840), (2255, 9552), (2388, 9020), (2460, 8756), (2640, 8159), (2706, 7960), (2985, 7216), (3184, 6765), (3280, 6567), (3608, 5970), (3980, 5412), (4378, 4920), (4510, 4776)]