18981326

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 36542016

約数和(自身を除く): 17560690

約数列:

[1, 2, 7, 13, 14, 26, 47, 49, 91, 94, 98, 182, 317, 329, 611, 634, 637, 658, 1222, 1274, 2219, 2303, 4121, 4277, 4438, 4606, 8242, 8554, 14899, 15533, 28847, 29798, 29939, 31066, 57694, 59878, 104293, 193687, 201929, 208586, 387374, 403858, 730051, 1355809, 1460102, 2711618, 9490663, 18981326]

約数ペア:

[(1, 18981326), (2, 9490663), (7, 2711618), (13, 1460102), (14, 1355809), (26, 730051), (47, 403858), (49, 387374), (91, 208586), (94, 201929), (98, 193687), (182, 104293), (317, 59878), (329, 57694), (611, 31066), (634, 29939), (637, 29798), (658, 28847), (1222, 15533), (1274, 14899), (2219, 8554), (2303, 8242), (4121, 4606), (4277, 4438)]