20218561601

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3951253}}^1$

素因数の和:3951320

約数の個数: 16

約数和(自身を含む): 25035145344

約数和(自身を除く): 4816583743

約数列:

[1, 7, 17, 43, 119, 301, 731, 5117, 3951253, 27658771, 67171301, 169903879, 470199107, 1189327153, 2888365943, 20218561601]

約数ペア:

[(1, 20218561601), (7, 2888365943), (17, 1189327153), (43, 470199107), (119, 169903879), (301, 67171301), (731, 27658771), (5117, 3951253)]