21798585

素因数分解:

$3^3\times 5^1\times {\mathrm{161471}}^1$

素因数の和:161485

約数の個数: 16

約数和(自身を含む): 38753280

約数和(自身を除く): 16954695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 161471, 484413, 807355, 1453239, 2422065, 4359717, 7266195, 21798585]

約数ペア:

[(1, 21798585), (3, 7266195), (5, 4359717), (9, 2422065), (15, 1453239), (27, 807355), (45, 484413), (135, 161471)]