20565896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6379}}^1$

素因数の和:6429

約数の個数: 32

約数和(自身を含む): 42873600

約数和(自身を除く): 22307704

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6379, 12758, 25516, 51032, 82927, 165854, 197749, 331708, 395498, 663416, 790996, 1581992, 2570737, 5141474, 10282948, 20565896]

約数ペア:

[(1, 20565896), (2, 10282948), (4, 5141474), (8, 2570737), (13, 1581992), (26, 790996), (31, 663416), (52, 395498), (62, 331708), (104, 197749), (124, 165854), (248, 82927), (403, 51032), (806, 25516), (1612, 12758), (3224, 6379)]