20972450990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110381321}}^1$

素因数の和:110381347

約数の個数: 16

約数和(自身を含む): 39737275920

約数和(自身を除く): 18764824930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110381321, 220762642, 551906605, 1103813210, 2097245099, 4194490198, 10486225495, 20972450990]

約数ペア:

[(1, 20972450990), (2, 10486225495), (5, 4194490198), (10, 2097245099), (19, 1103813210), (38, 551906605), (95, 220762642), (190, 110381321)]