20778844156

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{403097}}^1$

素因数の和:403378

約数の個数: 36

約数和(自身を含む): 42460730928

約数和(自身を除く): 21681886772

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 526, 1052, 1841, 3682, 7364, 12887, 25774, 51548, 403097, 806194, 1612388, 2821679, 5643358, 11286716, 19751753, 39503506, 79007012, 106014511, 212029022, 424058044, 742101577, 1484203154, 2968406308, 5194711039, 10389422078, 20778844156]

約数ペア:

[(1, 20778844156), (2, 10389422078), (4, 5194711039), (7, 2968406308), (14, 1484203154), (28, 742101577), (49, 424058044), (98, 212029022), (196, 106014511), (263, 79007012), (526, 39503506), (1052, 19751753), (1841, 11286716), (3682, 5643358), (7364, 2821679), (12887, 1612388), (25774, 806194), (51548, 403097)]