28564109

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 34583040

約数和(自身を除く): 6018931

約数列:

[1, 7, 47, 49, 79, 157, 329, 553, 1099, 2303, 3713, 3871, 7379, 7693, 12403, 25991, 51653, 86821, 181937, 361571, 582941, 607747, 4080587, 28564109]

約数ペア:

[(1, 28564109), (7, 4080587), (47, 607747), (49, 582941), (79, 361571), (157, 181937), (329, 86821), (553, 51653), (1099, 25991), (2303, 12403), (3713, 7693), (3871, 7379)]