19681156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 39739392

約数和(自身を除く): 20058236

約数列:

[1, 2, 4, 11, 22, 31, 44, 47, 62, 94, 124, 188, 307, 341, 517, 614, 682, 1034, 1228, 1364, 1457, 2068, 2914, 3377, 5828, 6754, 9517, 13508, 14429, 16027, 19034, 28858, 32054, 38068, 57716, 64108, 104687, 158719, 209374, 317438, 418748, 447299, 634876, 894598, 1789196, 4920289, 9840578, 19681156]

約数ペア:

[(1, 19681156), (2, 9840578), (4, 4920289), (11, 1789196), (22, 894598), (31, 634876), (44, 447299), (47, 418748), (62, 317438), (94, 209374), (124, 158719), (188, 104687), (307, 64108), (341, 57716), (517, 38068), (614, 32054), (682, 28858), (1034, 19034), (1228, 16027), (1364, 14429), (1457, 13508), (2068, 9517), (2914, 6754), (3377, 5828)]