21049882

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{373}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 37699200

約数和(自身を除く): 16649318

約数列:

[1, 2, 7, 14, 29, 58, 139, 203, 278, 373, 406, 746, 973, 1946, 2611, 4031, 5222, 8062, 10817, 21634, 28217, 51847, 56434, 75719, 103694, 151438, 362929, 725858, 1503563, 3007126, 10524941, 21049882]

約数ペア:

[(1, 21049882), (2, 10524941), (7, 3007126), (14, 1503563), (29, 725858), (58, 362929), (139, 151438), (203, 103694), (278, 75719), (373, 56434), (406, 51847), (746, 28217), (973, 21634), (1946, 10817), (2611, 8062), (4031, 5222)]