18649135

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1523}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 23408640

約数和(自身を除く): 4759505

約数列:

[1, 5, 31, 79, 155, 395, 1523, 2449, 7615, 12245, 47213, 120317, 236065, 601585, 3729827, 18649135]

約数ペア:

[(1, 18649135), (5, 3729827), (31, 601585), (79, 236065), (155, 120317), (395, 47213), (1523, 12245), (2449, 7615)]