18315885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 36716544

約数和(自身を除く): 18400659

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 51, 85, 93, 105, 119, 155, 217, 255, 331, 357, 465, 527, 595, 651, 993, 1085, 1581, 1655, 1785, 2317, 2635, 3255, 3689, 4965, 5627, 6951, 7905, 10261, 11067, 11585, 16881, 18445, 28135, 30783, 34755, 39389, 51305, 55335, 71827, 84405, 118167, 153915, 174437, 196945, 215481, 359135, 523311, 590835, 872185, 1077405, 1221059, 2616555, 3663177, 6105295, 18315885]

約数ペア:

[(1, 18315885), (3, 6105295), (5, 3663177), (7, 2616555), (15, 1221059), (17, 1077405), (21, 872185), (31, 590835), (35, 523311), (51, 359135), (85, 215481), (93, 196945), (105, 174437), (119, 153915), (155, 118167), (217, 84405), (255, 71827), (331, 55335), (357, 51305), (465, 39389), (527, 34755), (595, 30783), (651, 28135), (993, 18445), (1085, 16881), (1581, 11585), (1655, 11067), (1785, 10261), (2317, 7905), (2635, 6951), (3255, 5627), (3689, 4965)]