20640686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{241}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 36067680

約数和(自身を除く): 15426994

約数列:

[1, 2, 11, 17, 22, 34, 187, 229, 241, 374, 458, 482, 2519, 2651, 3893, 4097, 5038, 5302, 7786, 8194, 42823, 45067, 55189, 85646, 90134, 110378, 607079, 938213, 1214158, 1876426, 10320343, 20640686]

約数ペア:

[(1, 20640686), (2, 10320343), (11, 1876426), (17, 1214158), (22, 938213), (34, 607079), (187, 110378), (229, 90134), (241, 85646), (374, 55189), (458, 45067), (482, 42823), (2519, 8194), (2651, 7786), (3893, 5302), (4097, 5038)]