20915950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2237}}^1$

素因数の和:2277

約数の個数: 48

約数和(自身を含む): 44956944

約数和(自身を除く): 24040994

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 2237, 4474, 4675, 9350, 11185, 22370, 24607, 38029, 49214, 55925, 76058, 111850, 123035, 190145, 246070, 380290, 418319, 615175, 836638, 950725, 1230350, 1901450, 2091595, 4183190, 10457975, 20915950]

約数ペア:

[(1, 20915950), (2, 10457975), (5, 4183190), (10, 2091595), (11, 1901450), (17, 1230350), (22, 950725), (25, 836638), (34, 615175), (50, 418319), (55, 380290), (85, 246070), (110, 190145), (170, 123035), (187, 111850), (275, 76058), (374, 55925), (425, 49214), (550, 38029), (850, 24607), (935, 22370), (1870, 11185), (2237, 9350), (4474, 4675)]