20128647

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1103}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 33914880

約数和(自身を除く): 13786233

約数列:

[1, 3, 7, 11, 21, 33, 77, 79, 231, 237, 553, 869, 1103, 1659, 2607, 3309, 6083, 7721, 12133, 18249, 23163, 36399, 84931, 87137, 254793, 261411, 609959, 958507, 1829877, 2875521, 6709549, 20128647]

約数ペア:

[(1, 20128647), (3, 6709549), (7, 2875521), (11, 1829877), (21, 958507), (33, 609959), (77, 261411), (79, 254793), (231, 87137), (237, 84931), (553, 36399), (869, 23163), (1103, 18249), (1659, 12133), (2607, 7721), (3309, 6083)]