249165

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{113}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 506844

約数和(自身を除く): 257679

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 113, 147, 245, 315, 339, 441, 565, 735, 791, 1017, 1695, 2205, 2373, 3955, 5085, 5537, 7119, 11865, 16611, 27685, 35595, 49833, 83055, 249165]

約数ペア:

[(1, 249165), (3, 83055), (5, 49833), (7, 35595), (9, 27685), (15, 16611), (21, 11865), (35, 7119), (45, 5537), (49, 5085), (63, 3955), (105, 2373), (113, 2205), (147, 1695), (245, 1017), (315, 791), (339, 735), (441, 565)]