21381407138

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1\times {\mathrm{34361}}^1$

素因数の和:34659

約数の個数: 48

約数和(自身を含む): 39842326656

約数和(自身を除く): 18460919518

約数列:

[1, 2, 7, 13, 14, 26, 91, 169, 182, 263, 338, 526, 1183, 1841, 2366, 3419, 3682, 6838, 23933, 34361, 44447, 47866, 68722, 88894, 240527, 311129, 446693, 481054, 622258, 893386, 3126851, 5807009, 6253702, 9036943, 11614018, 18073886, 40649063, 63258601, 81298126, 117480259, 126517202, 234960518, 822361813, 1527243367, 1644723626, 3054486734, 10690703569, 21381407138]

約数ペア:

[(1, 21381407138), (2, 10690703569), (7, 3054486734), (13, 1644723626), (14, 1527243367), (26, 822361813), (91, 234960518), (169, 126517202), (182, 117480259), (263, 81298126), (338, 63258601), (526, 40649063), (1183, 18073886), (1841, 11614018), (2366, 9036943), (3419, 6253702), (3682, 5807009), (6838, 3126851), (23933, 893386), (34361, 622258), (44447, 481054), (47866, 446693), (68722, 311129), (88894, 240527)]