18188638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 12293282

約数列:

[1, 2, 13, 26, 59, 71, 118, 142, 167, 334, 767, 923, 1534, 1846, 2171, 4189, 4342, 8378, 9853, 11857, 19706, 23714, 54457, 108914, 128089, 154141, 256178, 308282, 699563, 1399126, 9094319, 18188638]

約数ペア:

[(1, 18188638), (2, 9094319), (13, 1399126), (26, 699563), (59, 308282), (71, 256178), (118, 154141), (142, 128089), (167, 108914), (334, 54457), (767, 23714), (923, 19706), (1534, 11857), (1846, 9853), (2171, 8378), (4189, 4342)]