21975570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 59040000

約数和(自身を除く): 37064430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 199, 270, 398, 409, 597, 818, 995, 1194, 1227, 1791, 1990, 2045, 2454, 2985, 3582, 3681, 4090, 5373, 5970, 6135, 7362, 8955, 10746, 11043, 12270, 17910, 18405, 22086, 26865, 36810, 53730, 55215, 81391, 110430, 162782, 244173, 406955, 488346, 732519, 813910, 1220865, 1465038, 2197557, 2441730, 3662595, 4395114, 7325190, 10987785, 21975570]

約数ペア:

[(1, 21975570), (2, 10987785), (3, 7325190), (5, 4395114), (6, 3662595), (9, 2441730), (10, 2197557), (15, 1465038), (18, 1220865), (27, 813910), (30, 732519), (45, 488346), (54, 406955), (90, 244173), (135, 162782), (199, 110430), (270, 81391), (398, 55215), (409, 53730), (597, 36810), (818, 26865), (995, 22086), (1194, 18405), (1227, 17910), (1791, 12270), (1990, 11043), (2045, 10746), (2454, 8955), (2985, 7362), (3582, 6135), (3681, 5970), (4090, 5373)]