31047849

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 53502592

約数和(自身を除く): 22454743

約数列:

[1, 3, 7, 9, 21, 43, 63, 73, 129, 157, 219, 301, 387, 471, 511, 657, 903, 1099, 1413, 1533, 2709, 3139, 3297, 4599, 6751, 9417, 9891, 11461, 20253, 21973, 28251, 34383, 47257, 60759, 65919, 80227, 103149, 141771, 197757, 240681, 425313, 492823, 722043, 1478469, 3449761, 4435407, 10349283, 31047849]

約数ペア:

[(1, 31047849), (3, 10349283), (7, 4435407), (9, 3449761), (21, 1478469), (43, 722043), (63, 492823), (73, 425313), (129, 240681), (157, 197757), (219, 141771), (301, 103149), (387, 80227), (471, 65919), (511, 60759), (657, 47257), (903, 34383), (1099, 28251), (1413, 21973), (1533, 20253), (2709, 11461), (3139, 9891), (3297, 9417), (4599, 6751)]