19904338

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{4201}}^1$

素因数の和:4329

約数の個数: 16

約数和(自身を含む): 31464576

約数和(自身を除く): 11560238

約数列:

[1, 2, 23, 46, 103, 206, 2369, 4201, 4738, 8402, 96623, 193246, 432703, 865406, 9952169, 19904338]

約数ペア:

[(1, 19904338), (2, 9952169), (23, 865406), (46, 432703), (103, 193246), (206, 96623), (2369, 8402), (4201, 4738)]