2151443

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 18

約数和(自身を含む): 2647764

約数和(自身を除く): 496321

約数列:

[1, 7, 23, 49, 83, 161, 529, 581, 1127, 1909, 3703, 4067, 13363, 25921, 43907, 93541, 307349, 2151443]

約数ペア:

[(1, 2151443), (7, 307349), (23, 93541), (49, 43907), (83, 25921), (161, 13363), (529, 4067), (581, 3703), (1127, 1909)]