21222117

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1471}}^1$

素因数の和:1713

約数の個数: 24

約数和(自身を含む): 35210240

約数和(自身を除く): 13988123

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1471, 1603, 2061, 4413, 4809, 10297, 13239, 14427, 30891, 92673, 336859, 1010577, 2358013, 3031731, 7074039, 21222117]

約数ペア:

[(1, 21222117), (3, 7074039), (7, 3031731), (9, 2358013), (21, 1010577), (63, 336859), (229, 92673), (687, 30891), (1471, 14427), (1603, 13239), (2061, 10297), (4413, 4809)]