21230730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{563}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 55429920

約数和(自身を除く): 34199190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 419, 563, 838, 1126, 1257, 1689, 2095, 2514, 2815, 3378, 3771, 4190, 5067, 5630, 6285, 7542, 8445, 10134, 12570, 16890, 18855, 25335, 37710, 50670, 235897, 471794, 707691, 1179485, 1415382, 2123073, 2358970, 3538455, 4246146, 7076910, 10615365, 21230730]

約数ペア:

[(1, 21230730), (2, 10615365), (3, 7076910), (5, 4246146), (6, 3538455), (9, 2358970), (10, 2123073), (15, 1415382), (18, 1179485), (30, 707691), (45, 471794), (90, 235897), (419, 50670), (563, 37710), (838, 25335), (1126, 18855), (1257, 16890), (1689, 12570), (2095, 10134), (2514, 8445), (2815, 7542), (3378, 6285), (3771, 5630), (4190, 5067)]