19551896

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 26170984

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 107, 182, 214, 251, 364, 428, 502, 728, 749, 856, 1004, 1391, 1498, 1757, 2008, 2782, 2996, 3263, 3514, 5564, 5992, 6526, 7028, 9737, 11128, 13052, 14056, 19474, 22841, 26104, 26857, 38948, 45682, 53714, 77896, 91364, 107428, 182728, 187999, 214856, 349141, 375998, 698282, 751996, 1396564, 1503992, 2443987, 2793128, 4887974, 9775948, 19551896]

約数ペア:

[(1, 19551896), (2, 9775948), (4, 4887974), (7, 2793128), (8, 2443987), (13, 1503992), (14, 1396564), (26, 751996), (28, 698282), (52, 375998), (56, 349141), (91, 214856), (104, 187999), (107, 182728), (182, 107428), (214, 91364), (251, 77896), (364, 53714), (428, 45682), (502, 38948), (728, 26857), (749, 26104), (856, 22841), (1004, 19474), (1391, 14056), (1498, 13052), (1757, 11128), (2008, 9737), (2782, 7028), (2996, 6526), (3263, 5992), (3514, 5564)]