21941775

素因数分解:

$3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{863}}^1$

素因数の和:992

約数の個数: 36

約数和(自身を含む): 39693888

約数和(自身を除く): 17752113

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 225, 339, 565, 863, 1017, 1695, 2589, 2825, 4315, 5085, 7767, 8475, 12945, 21575, 25425, 38835, 64725, 97519, 194175, 292557, 487595, 877671, 1462785, 2437975, 4388355, 7313925, 21941775]

約数ペア:

[(1, 21941775), (3, 7313925), (5, 4388355), (9, 2437975), (15, 1462785), (25, 877671), (45, 487595), (75, 292557), (113, 194175), (225, 97519), (339, 64725), (565, 38835), (863, 25425), (1017, 21575), (1695, 12945), (2589, 8475), (2825, 7767), (4315, 5085)]