18218996874

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{489679}}^1$

素因数の和:489756

約数の個数: 64

約数和(自身を含む): 44423769600

約数和(自身を除く): 26204772726

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 106, 117, 159, 234, 318, 351, 477, 689, 702, 954, 1378, 1431, 2067, 2862, 4134, 6201, 12402, 18603, 37206, 489679, 979358, 1469037, 2938074, 4407111, 6365827, 8814222, 12731654, 13221333, 19097481, 25952987, 26442666, 38194962, 51905974, 57292443, 77858961, 114584886, 155717922, 171877329, 233576883, 337388831, 343754658, 467153766, 674777662, 700730649, 1012166493, 1401461298, 2024332986, 3036499479, 6072998958, 9109498437, 18218996874]

約数ペア:

[(1, 18218996874), (2, 9109498437), (3, 6072998958), (6, 3036499479), (9, 2024332986), (13, 1401461298), (18, 1012166493), (26, 700730649), (27, 674777662), (39, 467153766), (53, 343754658), (54, 337388831), (78, 233576883), (106, 171877329), (117, 155717922), (159, 114584886), (234, 77858961), (318, 57292443), (351, 51905974), (477, 38194962), (689, 26442666), (702, 25952987), (954, 19097481), (1378, 13221333), (1431, 12731654), (2067, 8814222), (2862, 6365827), (4134, 4407111), (6201, 2938074), (12402, 1469037), (18603, 979358), (37206, 489679)]