20747961

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4547}}^1$

素因数の和:4582

約数の個数: 24

約数和(自身を含む): 33291360

約数和(自身を除く): 12543399

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4547, 4563, 13641, 40923, 59111, 122769, 177333, 531999, 768443, 1595997, 2305329, 6915987, 20747961]

約数ペア:

[(1, 20747961), (3, 6915987), (9, 2305329), (13, 1595997), (27, 768443), (39, 531999), (117, 177333), (169, 122769), (351, 59111), (507, 40923), (1521, 13641), (4547, 4563)]