18083972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 35112000

約数和(自身を除く): 17028028

約数列:

[1, 2, 4, 19, 37, 38, 59, 74, 76, 109, 118, 148, 218, 236, 436, 703, 1121, 1406, 2071, 2183, 2242, 2812, 4033, 4142, 4366, 4484, 6431, 8066, 8284, 8732, 12862, 16132, 25724, 41477, 76627, 82954, 122189, 153254, 165908, 237947, 244378, 306508, 475894, 488756, 951788, 4520993, 9041986, 18083972]

約数ペア:

[(1, 18083972), (2, 9041986), (4, 4520993), (19, 951788), (37, 488756), (38, 475894), (59, 306508), (74, 244378), (76, 237947), (109, 165908), (118, 153254), (148, 122189), (218, 82954), (236, 76627), (436, 41477), (703, 25724), (1121, 16132), (1406, 12862), (2071, 8732), (2183, 8284), (2242, 8066), (2812, 6431), (4033, 4484), (4142, 4366)]