639825642

素因数分解:

$2^1\times 3^4\times {\mathrm{3949541}}^1$

素因数の和:3949555

約数の個数: 20

約数和(自身を含む): 1433683746

約数和(自身を除く): 793858104

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 3949541, 7899082, 11848623, 23697246, 35545869, 71091738, 106637607, 213275214, 319912821, 639825642]

約数ペア:

[(1, 639825642), (2, 319912821), (3, 213275214), (6, 106637607), (9, 71091738), (18, 35545869), (27, 23697246), (54, 11848623), (81, 7899082), (162, 3949541)]