20542358

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 34499520

約数和(自身を除く): 13957162

約数列:

[1, 2, 17, 23, 34, 46, 109, 218, 241, 391, 482, 782, 1853, 2507, 3706, 4097, 5014, 5543, 8194, 11086, 26269, 42619, 52538, 85238, 94231, 188462, 446573, 604187, 893146, 1208374, 10271179, 20542358]

約数ペア:

[(1, 20542358), (2, 10271179), (17, 1208374), (23, 893146), (34, 604187), (46, 446573), (109, 188462), (218, 94231), (241, 85238), (391, 52538), (482, 42619), (782, 26269), (1853, 11086), (2507, 8194), (3706, 5543), (4097, 5014)]