81698169

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 127445760

約数和(自身を除く): 45747591

約数列:

[1, 3, 7, 21, 73, 137, 219, 389, 411, 511, 959, 1167, 1533, 2723, 2877, 8169, 10001, 28397, 30003, 53293, 70007, 85191, 159879, 198779, 210021, 373051, 596337, 1119153, 3890389, 11671167, 27232723, 81698169]

約数ペア:

[(1, 81698169), (3, 27232723), (7, 11671167), (21, 3890389), (73, 1119153), (137, 596337), (219, 373051), (389, 210021), (411, 198779), (511, 159879), (959, 85191), (1167, 70007), (1533, 53293), (2723, 30003), (2877, 28397), (8169, 10001)]