20645646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1297}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 47351040

約数和(自身を除く): 26705394

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 379, 758, 1137, 1297, 2274, 2594, 2653, 3891, 5306, 7782, 7959, 9079, 15918, 18158, 27237, 54474, 491563, 983126, 1474689, 2949378, 3440941, 6881882, 10322823, 20645646]

約数ペア:

[(1, 20645646), (2, 10322823), (3, 6881882), (6, 3440941), (7, 2949378), (14, 1474689), (21, 983126), (42, 491563), (379, 54474), (758, 27237), (1137, 18158), (1297, 15918), (2274, 9079), (2594, 7959), (2653, 7782), (3891, 5306)]