20517574

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{2719}}^1$

素因数の和:2753

約数の個数: 32

約数和(自身を含む): 39168000

約数和(自身を除く): 18650426

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 343, 539, 686, 1078, 2719, 3773, 5438, 7546, 19033, 29909, 38066, 59818, 133231, 209363, 266462, 418726, 932617, 1465541, 1865234, 2931082, 10258787, 20517574]

約数ペア:

[(1, 20517574), (2, 10258787), (7, 2931082), (11, 1865234), (14, 1465541), (22, 932617), (49, 418726), (77, 266462), (98, 209363), (154, 133231), (343, 59818), (539, 38066), (686, 29909), (1078, 19033), (2719, 7546), (3773, 5438)]