21830375

素因数分解:

$5^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 31724160

約数和(自身を除く): 9893785

約数列:

[1, 5, 7, 25, 35, 61, 125, 175, 305, 409, 427, 875, 1525, 2045, 2135, 2863, 7625, 10225, 10675, 14315, 24949, 51125, 53375, 71575, 124745, 174643, 357875, 623725, 873215, 3118625, 4366075, 21830375]

約数ペア:

[(1, 21830375), (5, 4366075), (7, 3118625), (25, 873215), (35, 623725), (61, 357875), (125, 174643), (175, 124745), (305, 71575), (409, 53375), (427, 51125), (875, 24949), (1525, 14315), (2045, 10675), (2135, 10225), (2863, 7625)]