20669684

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23813}}^1$

素因数の和:23855

約数の個数: 24

約数和(自身を含む): 42674688

約数和(自身を除く): 22005004

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23813, 47626, 95252, 166691, 333382, 666764, 738203, 1476406, 2952812, 5167421, 10334842, 20669684]

約数ペア:

[(1, 20669684), (2, 10334842), (4, 5167421), (7, 2952812), (14, 1476406), (28, 738203), (31, 666764), (62, 333382), (124, 166691), (217, 95252), (434, 47626), (868, 23813)]