21890910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10891}}^1$

素因数の和:10968

約数の個数: 32

約数和(自身を含む): 53327232

約数和(自身を除く): 31436322

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 335, 402, 670, 1005, 2010, 10891, 21782, 32673, 54455, 65346, 108910, 163365, 326730, 729697, 1459394, 2189091, 3648485, 4378182, 7296970, 10945455, 21890910]

約数ペア:

[(1, 21890910), (2, 10945455), (3, 7296970), (5, 4378182), (6, 3648485), (10, 2189091), (15, 1459394), (30, 729697), (67, 326730), (134, 163365), (201, 108910), (335, 65346), (402, 54455), (670, 32673), (1005, 21782), (2010, 10891)]