21525974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5197}}^1$

素因数の和:5327

約数の個数: 16

約数和(自身を含む): 34306800

約数和(自身を除く): 12780826

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5197, 10394, 98743, 197486, 566473, 1132946, 10762987, 21525974]

約数ペア:

[(1, 21525974), (2, 10762987), (19, 1132946), (38, 566473), (109, 197486), (218, 98743), (2071, 10394), (4142, 5197)]