19677728

素因数分解:

$2^5\times 7^1\times {\mathrm{107}}^1\times {\mathrm{821}}^1$

素因数の和:945

約数の個数: 48

約数和(自身を含む): 44743104

約数和(自身を除く): 25065376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 107, 112, 214, 224, 428, 749, 821, 856, 1498, 1642, 1712, 2996, 3284, 3424, 5747, 5992, 6568, 11494, 11984, 13136, 22988, 23968, 26272, 45976, 87847, 91952, 175694, 183904, 351388, 614929, 702776, 1229858, 1405552, 2459716, 2811104, 4919432, 9838864, 19677728]

約数ペア:

[(1, 19677728), (2, 9838864), (4, 4919432), (7, 2811104), (8, 2459716), (14, 1405552), (16, 1229858), (28, 702776), (32, 614929), (56, 351388), (107, 183904), (112, 175694), (214, 91952), (224, 87847), (428, 45976), (749, 26272), (821, 23968), (856, 22988), (1498, 13136), (1642, 11984), (1712, 11494), (2996, 6568), (3284, 5992), (3424, 5747)]