21550484

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2753}}^1$

素因数の和:2879

約数の個数: 24

約数和(自身を含む): 40098240

約数和(自身を除く): 18547756

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2753, 3914, 5506, 7828, 11012, 52307, 104614, 209228, 283559, 567118, 1134236, 5387621, 10775242, 21550484]

約数ペア:

[(1, 21550484), (2, 10775242), (4, 5387621), (19, 1134236), (38, 567118), (76, 283559), (103, 209228), (206, 104614), (412, 52307), (1957, 11012), (2753, 7828), (3914, 5506)]