21195750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 32717850

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 59, 75, 118, 125, 150, 177, 250, 295, 354, 375, 479, 590, 750, 885, 958, 1437, 1475, 1770, 2395, 2874, 2950, 4425, 4790, 7185, 7375, 8850, 11975, 14370, 14750, 22125, 23950, 28261, 35925, 44250, 56522, 59875, 71850, 84783, 119750, 141305, 169566, 179625, 282610, 359250, 423915, 706525, 847830, 1413050, 2119575, 3532625, 4239150, 7065250, 10597875, 21195750]

約数ペア:

[(1, 21195750), (2, 10597875), (3, 7065250), (5, 4239150), (6, 3532625), (10, 2119575), (15, 1413050), (25, 847830), (30, 706525), (50, 423915), (59, 359250), (75, 282610), (118, 179625), (125, 169566), (150, 141305), (177, 119750), (250, 84783), (295, 71850), (354, 59875), (375, 56522), (479, 44250), (590, 35925), (750, 28261), (885, 23950), (958, 22125), (1437, 14750), (1475, 14370), (1770, 11975), (2395, 8850), (2874, 7375), (2950, 7185), (4425, 4790)]