20645438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49391}}^1$

素因数の和:49423

約数の個数: 16

約数和(自身を含む): 35562240

約数和(自身を除く): 14916802

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49391, 98782, 543301, 938429, 1086602, 1876858, 10322719, 20645438]

約数ペア:

[(1, 20645438), (2, 10322719), (11, 1876858), (19, 1086602), (22, 938429), (38, 543301), (209, 98782), (418, 49391)]