18635512

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 23182088

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 71, 86, 109, 142, 172, 218, 284, 301, 344, 436, 497, 568, 602, 763, 872, 994, 1204, 1526, 1988, 2408, 3052, 3053, 3976, 4687, 6104, 6106, 7739, 9374, 12212, 15478, 18748, 21371, 24424, 30956, 32809, 37496, 42742, 54173, 61912, 65618, 85484, 108346, 131236, 170968, 216692, 262472, 332777, 433384, 665554, 1331108, 2329439, 2662216, 4658878, 9317756, 18635512]

約数ペア:

[(1, 18635512), (2, 9317756), (4, 4658878), (7, 2662216), (8, 2329439), (14, 1331108), (28, 665554), (43, 433384), (56, 332777), (71, 262472), (86, 216692), (109, 170968), (142, 131236), (172, 108346), (218, 85484), (284, 65618), (301, 61912), (344, 54173), (436, 42742), (497, 37496), (568, 32809), (602, 30956), (763, 24424), (872, 21371), (994, 18748), (1204, 15478), (1526, 12212), (1988, 9374), (2408, 7739), (3052, 6106), (3053, 6104), (3976, 4687)]