21285706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13421}}^1$

素因数の和:13497

約数の個数: 16

約数和(自身を含む): 34950888

約数和(自身を除く): 13665182

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 13421, 26842, 174473, 348946, 818681, 1637362, 10642853, 21285706]

約数ペア:

[(1, 21285706), (2, 10642853), (13, 1637362), (26, 818681), (61, 348946), (122, 174473), (793, 26842), (1586, 13421)]