1997478707

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{248783}}^1$

素因数の和:248858

約数の個数: 16

約数和(自身を含む): 2420170752

約数和(自身を除く): 422692045

約数列:

[1, 7, 31, 37, 217, 259, 1147, 8029, 248783, 1741481, 7712273, 9204971, 53985911, 64434797, 285354101, 1997478707]

約数ペア:

[(1, 1997478707), (7, 285354101), (31, 64434797), (37, 53985911), (217, 9204971), (259, 7712273), (1147, 1741481), (8029, 248783)]