20689158

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1873}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 47494656

約数和(自身を除く): 26805498

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 263, 526, 789, 1578, 1841, 1873, 3682, 3746, 5523, 5619, 11046, 11238, 13111, 26222, 39333, 78666, 492599, 985198, 1477797, 2955594, 3448193, 6896386, 10344579, 20689158]

約数ペア:

[(1, 20689158), (2, 10344579), (3, 6896386), (6, 3448193), (7, 2955594), (14, 1477797), (21, 985198), (42, 492599), (263, 78666), (526, 39333), (789, 26222), (1578, 13111), (1841, 11238), (1873, 11046), (3682, 5619), (3746, 5523)]