21396778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{48409}}^1$

素因数の和:48441

約数の個数: 16

約数和(自身を含む): 36597960

約数和(自身を除く): 15201182

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 48409, 96818, 629317, 822953, 1258634, 1645906, 10698389, 21396778]

約数ペア:

[(1, 21396778), (2, 10698389), (13, 1645906), (17, 1258634), (26, 822953), (34, 629317), (221, 96818), (442, 48409)]