178115427

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1481}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 310722048

約数和(自身を除く): 132606621

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 83, 161, 207, 249, 483, 581, 747, 1449, 1481, 1743, 1909, 4443, 5229, 5727, 10367, 13329, 13363, 17181, 31101, 34063, 40089, 93303, 102189, 120267, 122923, 238441, 306567, 368769, 715323, 860461, 1106307, 2145969, 2581383, 2827229, 7744149, 8481687, 19790603, 25445061, 59371809, 178115427]

約数ペア:

[(1, 178115427), (3, 59371809), (7, 25445061), (9, 19790603), (21, 8481687), (23, 7744149), (63, 2827229), (69, 2581383), (83, 2145969), (161, 1106307), (207, 860461), (249, 715323), (483, 368769), (581, 306567), (747, 238441), (1449, 122923), (1481, 120267), (1743, 102189), (1909, 93303), (4443, 40089), (5229, 34063), (5727, 31101), (10367, 17181), (13329, 13363)]