21512130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31177}}^1$

素因数の和:31210

約数の個数: 32

約数和(自身を含む): 53875584

約数和(自身を除く): 32363454

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31177, 62354, 93531, 155885, 187062, 311770, 467655, 717071, 935310, 1434142, 2151213, 3585355, 4302426, 7170710, 10756065, 21512130]

約数ペア:

[(1, 21512130), (2, 10756065), (3, 7170710), (5, 4302426), (6, 3585355), (10, 2151213), (15, 1434142), (23, 935310), (30, 717071), (46, 467655), (69, 311770), (115, 187062), (138, 155885), (230, 93531), (345, 62354), (690, 31177)]