209912958

素因数分解:

$2^1\times 3^4\times {\mathrm{389}}^1\times {\mathrm{3331}}^1$

素因数の和:3734

約数の個数: 40

約数和(自身を含む): 471711240

約数和(自身を除く): 261798282

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 389, 778, 1167, 2334, 3331, 3501, 6662, 7002, 9993, 10503, 19986, 21006, 29979, 31509, 59958, 63018, 89937, 179874, 269811, 539622, 1295759, 2591518, 3887277, 7774554, 11661831, 23323662, 34985493, 69970986, 104956479, 209912958]

約数ペア:

[(1, 209912958), (2, 104956479), (3, 69970986), (6, 34985493), (9, 23323662), (18, 11661831), (27, 7774554), (54, 3887277), (81, 2591518), (162, 1295759), (389, 539622), (778, 269811), (1167, 179874), (2334, 89937), (3331, 63018), (3501, 59958), (6662, 31509), (7002, 29979), (9993, 21006), (10503, 19986)]