21966819

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{13241}}^1$

素因数の和:13330

約数の個数: 16

約数和(自身を含む): 33899520

約数和(自身を除く): 11932701

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 13241, 39723, 92687, 278061, 1046039, 3138117, 7322273, 21966819]

約数ペア:

[(1, 21966819), (3, 7322273), (7, 3138117), (21, 1046039), (79, 278061), (237, 92687), (553, 39723), (1659, 13241)]