21659331

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1802

約数の個数: 16

約数和(自身を含む): 29783808

約数和(自身を除く): 8124477

約数列:

[1, 3, 61, 71, 183, 213, 1667, 4331, 5001, 12993, 101687, 118357, 305061, 355071, 7219777, 21659331]

約数ペア:

[(1, 21659331), (3, 7219777), (61, 355071), (71, 305061), (183, 118357), (213, 101687), (1667, 12993), (4331, 5001)]