20402361

素因数分解:

$3^4\times 7^1\times {\mathrm{35983}}^1$

素因数の和:36002

約数の個数: 20

約数和(自身を含む): 34832512

約数和(自身を除く): 14430151

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35983, 107949, 251881, 323847, 755643, 971541, 2266929, 2914623, 6800787, 20402361]

約数ペア:

[(1, 20402361), (3, 6800787), (7, 2914623), (9, 2266929), (21, 971541), (27, 755643), (63, 323847), (81, 251881), (189, 107949), (567, 35983)]