21655320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1597}}^1$

素因数の和:1724

約数の個数: 64

約数和(自身を含む): 65581920

約数和(自身を除く): 43926600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 113, 120, 226, 339, 452, 565, 678, 904, 1130, 1356, 1597, 1695, 2260, 2712, 3194, 3390, 4520, 4791, 6388, 6780, 7985, 9582, 12776, 13560, 15970, 19164, 23955, 31940, 38328, 47910, 63880, 95820, 180461, 191640, 360922, 541383, 721844, 902305, 1082766, 1443688, 1804610, 2165532, 2706915, 3609220, 4331064, 5413830, 7218440, 10827660, 21655320]

約数ペア:

[(1, 21655320), (2, 10827660), (3, 7218440), (4, 5413830), (5, 4331064), (6, 3609220), (8, 2706915), (10, 2165532), (12, 1804610), (15, 1443688), (20, 1082766), (24, 902305), (30, 721844), (40, 541383), (60, 360922), (113, 191640), (120, 180461), (226, 95820), (339, 63880), (452, 47910), (565, 38328), (678, 31940), (904, 23955), (1130, 19164), (1356, 15970), (1597, 13560), (1695, 12776), (2260, 9582), (2712, 7985), (3194, 6780), (3390, 6388), (4520, 4791)]