21557410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1381}}^1$

素因数の和:1618

約数の個数: 32

約数和(自身を含む): 44577792

約数和(自身を除く): 23020382

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 223, 446, 1115, 1381, 1561, 2230, 2762, 3122, 6905, 7805, 9667, 13810, 15610, 19334, 48335, 96670, 307963, 615926, 1539815, 2155741, 3079630, 4311482, 10778705, 21557410]

約数ペア:

[(1, 21557410), (2, 10778705), (5, 4311482), (7, 3079630), (10, 2155741), (14, 1539815), (35, 615926), (70, 307963), (223, 96670), (446, 48335), (1115, 19334), (1381, 15610), (1561, 13810), (2230, 9667), (2762, 7805), (3122, 6905)]