20556918

素因数分解:

$2^1\times 3^2\times {\mathrm{541}}^1\times {\mathrm{2111}}^1$

素因数の和:2660

約数の個数: 24

約数和(自身を含む): 44643456

約数和(自身を除く): 24086538

約数列:

[1, 2, 3, 6, 9, 18, 541, 1082, 1623, 2111, 3246, 4222, 4869, 6333, 9738, 12666, 18999, 37998, 1142051, 2284102, 3426153, 6852306, 10278459, 20556918]

約数ペア:

[(1, 20556918), (2, 10278459), (3, 6852306), (6, 3426153), (9, 2284102), (18, 1142051), (541, 37998), (1082, 18999), (1623, 12666), (2111, 9738), (3246, 6333), (4222, 4869)]