21375838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{6521}}^1$

素因数の和:6683

約数の個数: 16

約数和(自身を含む): 35218800

約数和(自身を除く): 13842962

約数列:

[1, 2, 11, 22, 149, 298, 1639, 3278, 6521, 13042, 71731, 143462, 971629, 1943258, 10687919, 21375838]

約数ペア:

[(1, 21375838), (2, 10687919), (11, 1943258), (22, 971629), (149, 143462), (298, 71731), (1639, 13042), (3278, 6521)]