20939238

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{8369}}^1$

素因数の和:8516

約数の個数: 24

約数和(自身を含む): 45700200

約数和(自身を除く): 24760962

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 8369, 16738, 25107, 50214, 75321, 150642, 1163291, 2326582, 3489873, 6979746, 10469619, 20939238]

約数ペア:

[(1, 20939238), (2, 10469619), (3, 6979746), (6, 3489873), (9, 2326582), (18, 1163291), (139, 150642), (278, 75321), (417, 50214), (834, 25107), (1251, 16738), (2502, 8369)]