21643147

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 2116853

約数列:

[1, 19, 43, 59, 449, 817, 1121, 2537, 8531, 19307, 26491, 48203, 366833, 503329, 1139113, 21643147]

約数ペア:

[(1, 21643147), (19, 1139113), (43, 503329), (59, 366833), (449, 48203), (817, 26491), (1121, 19307), (2537, 8531)]