19897684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5521}}^1$

素因数の和:5595

約数の個数: 24

約数和(自身を含む): 37571688

約数和(自身を除く): 17674004

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5521, 11042, 22084, 93857, 187714, 292613, 375428, 585226, 1170452, 4974421, 9948842, 19897684]

約数ペア:

[(1, 19897684), (2, 9948842), (4, 4974421), (17, 1170452), (34, 585226), (53, 375428), (68, 292613), (106, 187714), (212, 93857), (901, 22084), (1802, 11042), (3604, 5521)]