18644548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 18893372

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 113, 167, 226, 247, 334, 452, 494, 668, 988, 1469, 2147, 2171, 2938, 3173, 4294, 4342, 5876, 6346, 8588, 8684, 12692, 18871, 27911, 37742, 41249, 55822, 75484, 82498, 111644, 164996, 245323, 358549, 490646, 717098, 981292, 1434196, 4661137, 9322274, 18644548]

約数ペア:

[(1, 18644548), (2, 9322274), (4, 4661137), (13, 1434196), (19, 981292), (26, 717098), (38, 490646), (52, 358549), (76, 245323), (113, 164996), (167, 111644), (226, 82498), (247, 75484), (334, 55822), (452, 41249), (494, 37742), (668, 27911), (988, 18871), (1469, 12692), (2147, 8684), (2171, 8588), (2938, 6346), (3173, 5876), (4294, 4342)]