21184960

素因数分解:

$2^6\times 5^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:533

約数の個数: 56

約数和(自身を含む): 50840640

約数和(自身を除く): 29655680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 239, 277, 320, 478, 554, 956, 1108, 1195, 1385, 1912, 2216, 2390, 2770, 3824, 4432, 4780, 5540, 7648, 8864, 9560, 11080, 15296, 17728, 19120, 22160, 38240, 44320, 66203, 76480, 88640, 132406, 264812, 331015, 529624, 662030, 1059248, 1324060, 2118496, 2648120, 4236992, 5296240, 10592480, 21184960]

約数ペア:

[(1, 21184960), (2, 10592480), (4, 5296240), (5, 4236992), (8, 2648120), (10, 2118496), (16, 1324060), (20, 1059248), (32, 662030), (40, 529624), (64, 331015), (80, 264812), (160, 132406), (239, 88640), (277, 76480), (320, 66203), (478, 44320), (554, 38240), (956, 22160), (1108, 19120), (1195, 17728), (1385, 15296), (1912, 11080), (2216, 9560), (2390, 8864), (2770, 7648), (3824, 5540), (4432, 4780)]