21000663475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3320263}}^1$

素因数の和:3320307

約数の個数: 24

約数和(自身を含む): 29643316992

約数和(自身を除く): 8642653517

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 6325, 3320263, 16601315, 36522893, 76366049, 83006575, 182614465, 381830245, 840026539, 913072325, 1909151225, 4200132695, 21000663475]

約数ペア:

[(1, 21000663475), (5, 4200132695), (11, 1909151225), (23, 913072325), (25, 840026539), (55, 381830245), (115, 182614465), (253, 83006575), (275, 76366049), (575, 36522893), (1265, 16601315), (6325, 3320263)]