21820078

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{5393}}^1$

素因数の和:5436

約数の個数: 24

約数和(自身を含む): 39742992

約数和(自身を除く): 17922914

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 289, 578, 2023, 4046, 5393, 10786, 37751, 75502, 91681, 183362, 641767, 1283534, 1558577, 3117154, 10910039, 21820078]

約数ペア:

[(1, 21820078), (2, 10910039), (7, 3117154), (14, 1558577), (17, 1283534), (34, 641767), (119, 183362), (238, 91681), (289, 75502), (578, 37751), (2023, 10786), (4046, 5393)]