20527518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 47185920

約数和(自身を除く): 26658402

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 79, 93, 127, 158, 186, 237, 254, 341, 381, 474, 682, 762, 869, 1023, 1397, 1738, 2046, 2449, 2607, 2794, 3937, 4191, 4898, 5214, 7347, 7874, 8382, 10033, 11811, 14694, 20066, 23622, 26939, 30099, 43307, 53878, 60198, 80817, 86614, 110363, 129921, 161634, 220726, 259842, 311023, 331089, 622046, 662178, 933069, 1866138, 3421253, 6842506, 10263759, 20527518]

約数ペア:

[(1, 20527518), (2, 10263759), (3, 6842506), (6, 3421253), (11, 1866138), (22, 933069), (31, 662178), (33, 622046), (62, 331089), (66, 311023), (79, 259842), (93, 220726), (127, 161634), (158, 129921), (186, 110363), (237, 86614), (254, 80817), (341, 60198), (381, 53878), (474, 43307), (682, 30099), (762, 26939), (869, 23622), (1023, 20066), (1397, 14694), (1738, 11811), (2046, 10033), (2449, 8382), (2607, 7874), (2794, 7347), (3937, 5214), (4191, 4898)]