20648313

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{673}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 34206848

約数和(自身を除く): 13558535

約数列:

[1, 3, 7, 9, 21, 63, 487, 673, 1461, 2019, 3409, 4383, 4711, 6057, 10227, 14133, 30681, 42399, 327751, 983253, 2294257, 2949759, 6882771, 20648313]

約数ペア:

[(1, 20648313), (3, 6882771), (7, 2949759), (9, 2294257), (21, 983253), (63, 327751), (487, 42399), (673, 30681), (1461, 14133), (2019, 10227), (3409, 6057), (4383, 4711)]