20001826

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^2$

素因数の和:163

約数の個数: 36

約数和(自身を含む): 34992162

約数和(自身を除く): 14990336

約数列:

[1, 2, 13, 17, 26, 34, 59, 118, 169, 221, 338, 442, 767, 1003, 1534, 2006, 2873, 3481, 5746, 6962, 9971, 13039, 19942, 26078, 45253, 59177, 90506, 118354, 169507, 339014, 588289, 769301, 1176578, 1538602, 10000913, 20001826]

約数ペア:

[(1, 20001826), (2, 10000913), (13, 1538602), (17, 1176578), (26, 769301), (34, 588289), (59, 339014), (118, 169507), (169, 118354), (221, 90506), (338, 59177), (442, 45253), (767, 26078), (1003, 19942), (1534, 13039), (2006, 9971), (2873, 6962), (3481, 5746)]