18601731

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{7919}}^1$

素因数の和:7960

約数の個数: 20

約数和(自身を含む): 28749600

約数和(自身を除く): 10147869

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 7919, 23757, 71271, 213813, 229651, 641439, 688953, 2066859, 6200577, 18601731]

約数ペア:

[(1, 18601731), (3, 6200577), (9, 2066859), (27, 688953), (29, 641439), (81, 229651), (87, 213813), (261, 71271), (783, 23757), (2349, 7919)]