19881222

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{293}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 40981248

約数和(自身を除く): 21100026

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 263, 293, 526, 586, 789, 879, 1578, 1758, 11309, 12599, 22618, 25198, 33927, 37797, 67854, 75594, 77059, 154118, 231177, 462354, 3313537, 6627074, 9940611, 19881222]

約数ペア:

[(1, 19881222), (2, 9940611), (3, 6627074), (6, 3313537), (43, 462354), (86, 231177), (129, 154118), (258, 77059), (263, 75594), (293, 67854), (526, 37797), (586, 33927), (789, 25198), (879, 22618), (1578, 12599), (1758, 11309)]