18745804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{503}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 41319936

約数和(自身を除く): 22574132

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 503, 847, 1006, 1331, 1694, 2012, 2662, 3388, 3521, 5324, 5533, 7042, 9317, 11066, 14084, 18634, 22132, 37268, 38731, 60863, 77462, 121726, 154924, 243452, 426041, 669493, 852082, 1338986, 1704164, 2677972, 4686451, 9372902, 18745804]

約数ペア:

[(1, 18745804), (2, 9372902), (4, 4686451), (7, 2677972), (11, 1704164), (14, 1338986), (22, 852082), (28, 669493), (44, 426041), (77, 243452), (121, 154924), (154, 121726), (242, 77462), (308, 60863), (484, 38731), (503, 37268), (847, 22132), (1006, 18634), (1331, 14084), (1694, 11066), (2012, 9317), (2662, 7042), (3388, 5533), (3521, 5324)]