18716894

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 34407936

約数和(自身を除く): 15691042

約数列:

[1, 2, 7, 14, 23, 37, 46, 74, 161, 259, 322, 518, 851, 1571, 1702, 3142, 5957, 10997, 11914, 21994, 36133, 58127, 72266, 116254, 252931, 406889, 505862, 813778, 1336921, 2673842, 9358447, 18716894]

約数ペア:

[(1, 18716894), (2, 9358447), (7, 2673842), (14, 1336921), (23, 813778), (37, 505862), (46, 406889), (74, 252931), (161, 116254), (259, 72266), (322, 58127), (518, 36133), (851, 21994), (1571, 11914), (1702, 10997), (3142, 5957)]