21843857

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 26544672

約数和(自身を除く): 4700815

約数列:

[1, 7, 41, 49, 83, 131, 287, 581, 917, 2009, 3403, 4067, 5371, 6419, 10873, 23821, 37597, 76111, 166747, 263179, 445793, 532777, 3120551, 21843857]

約数ペア:

[(1, 21843857), (7, 3120551), (41, 532777), (49, 445793), (83, 263179), (131, 166747), (287, 76111), (581, 37597), (917, 23821), (2009, 10873), (3403, 6419), (4067, 5371)]