21215826

素因数分解:

$2^1\times 3^2\times {\mathrm{677}}^1\times {\mathrm{1741}}^1$

素因数の和:2426

約数の個数: 24

約数和(自身を含む): 46061964

約数和(自身を除く): 24846138

約数列:

[1, 2, 3, 6, 9, 18, 677, 1354, 1741, 2031, 3482, 4062, 5223, 6093, 10446, 12186, 15669, 31338, 1178657, 2357314, 3535971, 7071942, 10607913, 21215826]

約数ペア:

[(1, 21215826), (2, 10607913), (3, 7071942), (6, 3535971), (9, 2357314), (18, 1178657), (677, 31338), (1354, 15669), (1741, 12186), (2031, 10446), (3482, 6093), (4062, 5223)]