19617808

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1637}}^1$

素因数の和:1759

約数の個数: 40

約数和(自身を含む): 43872192

約数和(自身を除く): 24254384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1637, 1712, 2996, 3274, 5992, 6548, 11459, 11984, 13096, 22918, 26192, 45836, 91672, 175159, 183344, 350318, 700636, 1226113, 1401272, 2452226, 2802544, 4904452, 9808904, 19617808]

約数ペア:

[(1, 19617808), (2, 9808904), (4, 4904452), (7, 2802544), (8, 2452226), (14, 1401272), (16, 1226113), (28, 700636), (56, 350318), (107, 183344), (112, 175159), (214, 91672), (428, 45836), (749, 26192), (856, 22918), (1498, 13096), (1637, 11984), (1712, 11459), (2996, 6548), (3274, 5992)]