21901916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2351}}^1$

素因数の和:2509

約数の個数: 24

約数和(自身を含む): 40896576

約数和(自身を除く): 18994660

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2329, 2351, 4658, 4702, 9316, 9404, 39967, 79934, 159868, 322087, 644174, 1288348, 5475479, 10950958, 21901916]

約数ペア:

[(1, 21901916), (2, 10950958), (4, 5475479), (17, 1288348), (34, 644174), (68, 322087), (137, 159868), (274, 79934), (548, 39967), (2329, 9404), (2351, 9316), (4658, 4702)]