21959231

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4094

約数の個数: 16

約数和(自身を含む): 27068160

約数和(自身を除く): 5108929

約数列:

[1, 7, 19, 41, 133, 287, 779, 4027, 5453, 28189, 76513, 165107, 535591, 1155749, 3137033, 21959231]

約数ペア:

[(1, 21959231), (7, 3137033), (19, 1155749), (41, 535591), (133, 165107), (287, 76513), (779, 28189), (4027, 5453)]