19580825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6473}}^1$

素因数の和:6505

約数の個数: 18

約数和(自身を含む): 26692302

約数和(自身を除く): 7111477

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6473, 32365, 71203, 161825, 356015, 783233, 1780075, 3916165, 19580825]

約数ペア:

[(1, 19580825), (5, 3916165), (11, 1780075), (25, 783233), (55, 356015), (121, 161825), (275, 71203), (605, 32365), (3025, 6473)]