19115984

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 38096520

約数和(自身を除く): 18980536

約数列:

[1, 2, 4, 8, 16, 97, 109, 113, 194, 218, 226, 388, 436, 452, 776, 872, 904, 1552, 1744, 1808, 10573, 10961, 12317, 21146, 21922, 24634, 42292, 43844, 49268, 84584, 87688, 98536, 169168, 175376, 197072, 1194749, 2389498, 4778996, 9557992, 19115984]

約数ペア:

[(1, 19115984), (2, 9557992), (4, 4778996), (8, 2389498), (16, 1194749), (97, 197072), (109, 175376), (113, 169168), (194, 98536), (218, 87688), (226, 84584), (388, 49268), (436, 43844), (452, 42292), (776, 24634), (872, 21922), (904, 21146), (1552, 12317), (1744, 10961), (1808, 10573)]