20217618

素因数分解:

$2^1\times 3^2\times {\mathrm{401}}^1\times {\mathrm{2801}}^1$

素因数の和:3210

約数の個数: 24

約数和(自身を含む): 43929756

約数和(自身を除く): 23712138

約数列:

[1, 2, 3, 6, 9, 18, 401, 802, 1203, 2406, 2801, 3609, 5602, 7218, 8403, 16806, 25209, 50418, 1123201, 2246402, 3369603, 6739206, 10108809, 20217618]

約数ペア:

[(1, 20217618), (2, 10108809), (3, 6739206), (6, 3369603), (9, 2246402), (18, 1123201), (401, 50418), (802, 25209), (1203, 16806), (2406, 8403), (2801, 7218), (3609, 5602)]