21123688

素因数分解:

$2^3\times {\mathrm{797}}^1\times {\mathrm{3313}}^1$

素因数の和:4116

約数の個数: 16

約数和(自身を含む): 39668580

約数和(自身を除く): 18544892

約数列:

[1, 2, 4, 8, 797, 1594, 3188, 3313, 6376, 6626, 13252, 26504, 2640461, 5280922, 10561844, 21123688]

約数ペア:

[(1, 21123688), (2, 10561844), (4, 5280922), (8, 2640461), (797, 26504), (1594, 13252), (3188, 6626), (3313, 6376)]