19976679

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 31641600

約数和(自身を除く): 11664921

約数列:

[1, 3, 9, 27, 29, 31, 87, 93, 261, 279, 783, 823, 837, 899, 2469, 2697, 7407, 8091, 22221, 23867, 24273, 25513, 71601, 76539, 214803, 229617, 644409, 688851, 739877, 2219631, 6658893, 19976679]

約数ペア:

[(1, 19976679), (3, 6658893), (9, 2219631), (27, 739877), (29, 688851), (31, 644409), (87, 229617), (93, 214803), (261, 76539), (279, 71601), (783, 25513), (823, 24273), (837, 23867), (899, 22221), (2469, 8091), (2697, 7407)]