247348521

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{32993}}^1$

素因数の和:33030

約数の個数: 36

約数和(自身を含む): 440073972

約数和(自身を除く): 192725451

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 7497, 32993, 98979, 230951, 296937, 560881, 692853, 1616657, 1682643, 2078559, 3926167, 4849971, 5047929, 11778501, 14549913, 27483169, 35335503, 82449507, 247348521]

約数ペア:

[(1, 247348521), (3, 82449507), (7, 35335503), (9, 27483169), (17, 14549913), (21, 11778501), (49, 5047929), (51, 4849971), (63, 3926167), (119, 2078559), (147, 1682643), (153, 1616657), (357, 692853), (441, 560881), (833, 296937), (1071, 230951), (2499, 98979), (7497, 32993)]