21987746

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{13691}}^1$

素因数の和:13777

約数の個数: 16

約数和(自身を含む): 36475488

約数和(自身を除く): 14487742

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 13691, 27382, 150601, 301202, 999443, 1998886, 10993873, 21987746]

約数ペア:

[(1, 21987746), (2, 10993873), (11, 1998886), (22, 999443), (73, 301202), (146, 150601), (803, 27382), (1606, 13691)]