30981419

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{3191}}^1$

素因数の和:3290

約数の個数: 16

約数和(自身を含む): 37793280

約数和(自身を除く): 6811861

約数列:

[1, 7, 19, 73, 133, 511, 1387, 3191, 9709, 22337, 60629, 232943, 424403, 1630601, 4425917, 30981419]

約数ペア:

[(1, 30981419), (7, 4425917), (19, 1630601), (73, 424403), (133, 232943), (511, 60629), (1387, 22337), (3191, 9709)]