21563792

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:551

約数の個数: 40

約数和(自身を含む): 43390080

約数和(自身を除く): 21826288

約数列:

[1, 2, 4, 8, 16, 53, 59, 106, 118, 212, 236, 424, 431, 472, 848, 862, 944, 1724, 3127, 3448, 6254, 6896, 12508, 22843, 25016, 25429, 45686, 50032, 50858, 91372, 101716, 182744, 203432, 365488, 406864, 1347737, 2695474, 5390948, 10781896, 21563792]

約数ペア:

[(1, 21563792), (2, 10781896), (4, 5390948), (8, 2695474), (16, 1347737), (53, 406864), (59, 365488), (106, 203432), (118, 182744), (212, 101716), (236, 91372), (424, 50858), (431, 50032), (472, 45686), (848, 25429), (862, 25016), (944, 22843), (1724, 12508), (3127, 6896), (3448, 6254)]