20518366

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 15147554

約数列:

[1, 2, 11, 19, 22, 38, 191, 209, 257, 382, 418, 514, 2101, 2827, 3629, 4202, 4883, 5654, 7258, 9766, 39919, 49087, 53713, 79838, 98174, 107426, 539957, 932653, 1079914, 1865306, 10259183, 20518366]

約数ペア:

[(1, 20518366), (2, 10259183), (11, 1865306), (19, 1079914), (22, 932653), (38, 539957), (191, 107426), (209, 98174), (257, 79838), (382, 53713), (418, 49087), (514, 39919), (2101, 9766), (2827, 7258), (3629, 5654), (4202, 4883)]