74879987

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{2399}}^1$

素因数の和:2440

約数の個数: 20

約数和(自身を含む): 94113600

約数和(自身を除く): 19233613

約数列:

[1, 7, 13, 49, 91, 343, 637, 2399, 2401, 4459, 16793, 31187, 31213, 117551, 218309, 822857, 1528163, 5759999, 10697141, 74879987]

約数ペア:

[(1, 74879987), (7, 10697141), (13, 5759999), (49, 1528163), (91, 822857), (343, 218309), (637, 117551), (2399, 31213), (2401, 31187), (4459, 16793)]