19638718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4003}}^1$

素因数の和:4239

約数の個数: 16

約数和(自身を含む): 32288256

約数和(自身を除く): 12649538

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4003, 4906, 8006, 44033, 88066, 892669, 1785338, 9819359, 19638718]

約数ペア:

[(1, 19638718), (2, 9819359), (11, 1785338), (22, 892669), (223, 88066), (446, 44033), (2453, 8006), (4003, 4906)]