19887375

素因数分解:

$3^1\times 5^3\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 33388992

約数和(自身を除く): 13501617

約数列:

[1, 3, 5, 15, 25, 75, 125, 181, 293, 375, 543, 879, 905, 1465, 2715, 4395, 4525, 7325, 13575, 21975, 22625, 36625, 53033, 67875, 109875, 159099, 265165, 795495, 1325825, 3977475, 6629125, 19887375]

約数ペア:

[(1, 19887375), (3, 6629125), (5, 3977475), (15, 1325825), (25, 795495), (75, 265165), (125, 159099), (181, 109875), (293, 67875), (375, 53033), (543, 36625), (879, 22625), (905, 21975), (1465, 13575), (2715, 7325), (4395, 4525)]