20572245

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1571}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 36973440

約数和(自身を除く): 16401195

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 291, 485, 873, 1455, 1571, 2619, 4365, 4713, 7855, 13095, 14139, 23565, 42417, 70695, 152387, 212085, 457161, 761935, 1371483, 2285805, 4114449, 6857415, 20572245]

約数ペア:

[(1, 20572245), (3, 6857415), (5, 4114449), (9, 2285805), (15, 1371483), (27, 761935), (45, 457161), (97, 212085), (135, 152387), (291, 70695), (485, 42417), (873, 23565), (1455, 14139), (1571, 13095), (2619, 7855), (4365, 4713)]