643670391

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4003}}^1$

素因数の和:4076

約数の個数: 64

約数和(自身を含む): 1148026880

約数和(自身を除く): 504356489

約数列:

[1, 3, 7, 13, 19, 21, 31, 39, 57, 91, 93, 133, 217, 247, 273, 399, 403, 589, 651, 741, 1209, 1729, 1767, 2821, 4003, 4123, 5187, 7657, 8463, 12009, 12369, 22971, 28021, 52039, 53599, 76057, 84063, 124093, 156117, 160797, 228171, 364273, 372279, 532399, 868651, 988741, 1092819, 1597197, 1613209, 2357767, 2605953, 2966223, 4839627, 6921187, 7073301, 11292463, 16504369, 20763561, 30650971, 33877389, 49513107, 91952913, 214556797, 643670391]

約数ペア:

[(1, 643670391), (3, 214556797), (7, 91952913), (13, 49513107), (19, 33877389), (21, 30650971), (31, 20763561), (39, 16504369), (57, 11292463), (91, 7073301), (93, 6921187), (133, 4839627), (217, 2966223), (247, 2605953), (273, 2357767), (399, 1613209), (403, 1597197), (589, 1092819), (651, 988741), (741, 868651), (1209, 532399), (1729, 372279), (1767, 364273), (2821, 228171), (4003, 160797), (4123, 156117), (5187, 124093), (7657, 84063), (8463, 76057), (12009, 53599), (12369, 52039), (22971, 28021)]