15697301991

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2070611}}^1$

素因数の和:2070659

約数の個数: 24

約数和(自身を含む): 25244901504

約数和(自身を除く): 9547599513

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 2070611, 6211833, 14494277, 39341609, 43482831, 118024827, 275391263, 747490571, 826173789, 2242471713, 5232433997, 15697301991]

約数ペア:

[(1, 15697301991), (3, 5232433997), (7, 2242471713), (19, 826173789), (21, 747490571), (57, 275391263), (133, 118024827), (361, 43482831), (399, 39341609), (1083, 14494277), (2527, 6211833), (7581, 2070611)]