18917037

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 10435923

約数列:

[1, 3, 9, 27, 31, 93, 97, 233, 279, 291, 699, 837, 873, 2097, 2619, 3007, 6291, 7223, 9021, 21669, 22601, 27063, 65007, 67803, 81189, 195021, 203409, 610227, 700631, 2101893, 6305679, 18917037]

約数ペア:

[(1, 18917037), (3, 6305679), (9, 2101893), (27, 700631), (31, 610227), (93, 203409), (97, 195021), (233, 81189), (279, 67803), (291, 65007), (699, 27063), (837, 22601), (873, 21669), (2097, 9021), (2619, 7223), (3007, 6291)]