21891801

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{9133}}^1$

素因数の和:9200

約数の個数: 16

約数和(自身を含む): 31567104

約数和(自身を除く): 9675303

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 9133, 27399, 155261, 429251, 465783, 1287753, 7297267, 21891801]

約数ペア:

[(1, 21891801), (3, 7297267), (17, 1287753), (47, 465783), (51, 429251), (141, 155261), (799, 27399), (2397, 9133)]