21887404

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 48142080

約数和(自身を除く): 26254676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 179, 308, 358, 397, 716, 794, 1253, 1588, 1969, 2506, 2779, 3938, 4367, 5012, 5558, 7876, 8734, 11116, 13783, 17468, 27566, 30569, 55132, 61138, 71063, 122276, 142126, 284252, 497441, 781693, 994882, 1563386, 1989764, 3126772, 5471851, 10943702, 21887404]

約数ペア:

[(1, 21887404), (2, 10943702), (4, 5471851), (7, 3126772), (11, 1989764), (14, 1563386), (22, 994882), (28, 781693), (44, 497441), (77, 284252), (154, 142126), (179, 122276), (308, 71063), (358, 61138), (397, 55132), (716, 30569), (794, 27566), (1253, 17468), (1588, 13783), (1969, 11116), (2506, 8734), (2779, 7876), (3938, 5558), (4367, 5012)]