16558225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 21398432

約数和(自身を除く): 4840207

約数列:

[1, 5, 25, 43, 73, 211, 215, 365, 1055, 1075, 1825, 3139, 5275, 9073, 15403, 15695, 45365, 77015, 78475, 226825, 385075, 662329, 3311645, 16558225]

約数ペア:

[(1, 16558225), (5, 3311645), (25, 662329), (43, 385075), (73, 226825), (211, 78475), (215, 77015), (365, 45365), (1055, 15695), (1075, 15403), (1825, 9073), (3139, 5275)]