21649770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{821}}^1$

素因数の和:1127

約数の個数: 48

約数和(自身を含む): 56550312

約数和(自身を除く): 34900542

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 293, 586, 821, 879, 1465, 1642, 1758, 2463, 2637, 2930, 4105, 4395, 4926, 5274, 7389, 8210, 8790, 12315, 13185, 14778, 24630, 26370, 36945, 73890, 240553, 481106, 721659, 1202765, 1443318, 2164977, 2405530, 3608295, 4329954, 7216590, 10824885, 21649770]

約数ペア:

[(1, 21649770), (2, 10824885), (3, 7216590), (5, 4329954), (6, 3608295), (9, 2405530), (10, 2164977), (15, 1443318), (18, 1202765), (30, 721659), (45, 481106), (90, 240553), (293, 73890), (586, 36945), (821, 26370), (879, 24630), (1465, 14778), (1642, 13185), (1758, 12315), (2463, 8790), (2637, 8210), (2930, 7389), (4105, 5274), (4395, 4926)]