7490021

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 9703680

約数和(自身を除く): 2213659

約数列:

[1, 7, 11, 37, 77, 121, 239, 259, 407, 847, 1673, 2629, 2849, 4477, 8843, 18403, 28919, 31339, 61901, 97273, 202433, 680911, 1070003, 7490021]

約数ペア:

[(1, 7490021), (7, 1070003), (11, 680911), (37, 202433), (77, 97273), (121, 61901), (239, 31339), (259, 28919), (407, 18403), (847, 8843), (1673, 4477), (2629, 2849)]