212980901

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 260029440

約数和(自身を除く): 47048539

約数列:

[1, 7, 29, 49, 71, 203, 497, 1421, 2059, 2111, 3479, 14413, 14777, 61219, 100891, 103439, 149881, 428533, 1049167, 2999731, 4346549, 7344169, 30425843, 212980901]

約数ペア:

[(1, 212980901), (7, 30425843), (29, 7344169), (49, 4346549), (71, 2999731), (203, 1049167), (497, 428533), (1421, 149881), (2059, 103439), (2111, 100891), (3479, 61219), (14413, 14777)]