20777868

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 56849520

約数和(自身を除く): 36071652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 74, 76, 111, 114, 148, 171, 222, 228, 333, 342, 444, 666, 684, 703, 821, 1332, 1406, 1642, 2109, 2463, 2812, 3284, 4218, 4926, 6327, 7389, 8436, 9852, 12654, 14778, 15599, 25308, 29556, 30377, 31198, 46797, 60754, 62396, 91131, 93594, 121508, 140391, 182262, 187188, 273393, 280782, 364524, 546786, 561564, 577163, 1093572, 1154326, 1731489, 2308652, 3462978, 5194467, 6925956, 10388934, 20777868]

約数ペア:

[(1, 20777868), (2, 10388934), (3, 6925956), (4, 5194467), (6, 3462978), (9, 2308652), (12, 1731489), (18, 1154326), (19, 1093572), (36, 577163), (37, 561564), (38, 546786), (57, 364524), (74, 280782), (76, 273393), (111, 187188), (114, 182262), (148, 140391), (171, 121508), (222, 93594), (228, 91131), (333, 62396), (342, 60754), (444, 46797), (666, 31198), (684, 30377), (703, 29556), (821, 25308), (1332, 15599), (1406, 14778), (1642, 12654), (2109, 9852), (2463, 8436), (2812, 7389), (3284, 6327), (4218, 4926)]