21054730

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 39327120

約数和(自身を除く): 18272390

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 577, 890, 1154, 2885, 3649, 5770, 7298, 18245, 23657, 36490, 47314, 51353, 102706, 118285, 236570, 256765, 513530, 2105473, 4210946, 10527365, 21054730]

約数ペア:

[(1, 21054730), (2, 10527365), (5, 4210946), (10, 2105473), (41, 513530), (82, 256765), (89, 236570), (178, 118285), (205, 102706), (410, 51353), (445, 47314), (577, 36490), (890, 23657), (1154, 18245), (2885, 7298), (3649, 5770)]