20740738

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 31779000

約数和(自身を除く): 11038262

約数列:

[1, 2, 89, 109, 178, 218, 1069, 2138, 9701, 19402, 95141, 116521, 190282, 233042, 10370369, 20740738]

約数ペア:

[(1, 20740738), (2, 10370369), (89, 233042), (109, 190282), (178, 116521), (218, 95141), (1069, 19402), (2138, 9701)]