21921025

素因数分解:

$5^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{547}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 31257920

約数和(自身を除く): 9336895

約数列:

[1, 5, 7, 25, 35, 175, 229, 547, 1145, 1603, 2735, 3829, 5725, 8015, 13675, 19145, 40075, 95725, 125263, 626315, 876841, 3131575, 4384205, 21921025]

約数ペア:

[(1, 21921025), (5, 4384205), (7, 3131575), (25, 876841), (35, 626315), (175, 125263), (229, 95725), (547, 40075), (1145, 19145), (1603, 13675), (2735, 8015), (3829, 5725)]