18900513

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{8861}}^1$

素因数の和:8949

約数の個数: 16

約数和(自身を含む): 28358400

約数和(自身を除く): 9457887

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 8861, 26583, 79749, 239247, 700019, 2100057, 6300171, 18900513]

約数ペア:

[(1, 18900513), (3, 6300171), (9, 2100057), (27, 700019), (79, 239247), (237, 79749), (711, 26583), (2133, 8861)]