18979684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{6491}}^1$

素因数の和:6555

約数の個数: 24

約数和(自身を含む): 35991648

約数和(自身を除く): 17011964

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 6491, 12982, 25964, 110347, 220694, 279113, 441388, 558226, 1116452, 4744921, 9489842, 18979684]

約数ペア:

[(1, 18979684), (2, 9489842), (4, 4744921), (17, 1116452), (34, 558226), (43, 441388), (68, 279113), (86, 220694), (172, 110347), (731, 25964), (1462, 12982), (2924, 6491)]