21995314

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2557}}^1$

素因数の和:2610

約数の個数: 32

約数和(自身を含む): 39782016

約数和(自身を除く): 17786702

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 187, 253, 374, 391, 506, 782, 2557, 4301, 5114, 8602, 28127, 43469, 56254, 58811, 86938, 117622, 478159, 646921, 956318, 999787, 1293842, 1999574, 10997657, 21995314]

約数ペア:

[(1, 21995314), (2, 10997657), (11, 1999574), (17, 1293842), (22, 999787), (23, 956318), (34, 646921), (46, 478159), (187, 117622), (253, 86938), (374, 58811), (391, 56254), (506, 43469), (782, 28127), (2557, 8602), (4301, 5114)]