20392947

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3847}}^1$

素因数の和:3903

約数の個数: 24

約数和(自身を含む): 32015360

約数和(自身を除く): 11622413

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 3847, 5301, 11541, 34623, 73093, 119257, 219279, 357771, 657837, 1073313, 2265883, 6797649, 20392947]

約数ペア:

[(1, 20392947), (3, 6797649), (9, 2265883), (19, 1073313), (31, 657837), (57, 357771), (93, 219279), (171, 119257), (279, 73093), (589, 34623), (1767, 11541), (3847, 5301)]