21243607

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3583}}^1$

素因数の和:3619

約数の個数: 18

約数和(自身を含む): 27170304

約数和(自身を除く): 5926697

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 3583, 5929, 25081, 39413, 175567, 275891, 433543, 1931237, 3034801, 21243607]

約数ペア:

[(1, 21243607), (7, 3034801), (11, 1931237), (49, 433543), (77, 275891), (121, 175567), (539, 39413), (847, 25081), (3583, 5929)]