211875

素因数分解:

$3^1\times 5^4\times {\mathrm{113}}^1$

素因数の和:136

約数の個数: 20

約数和(自身を含む): 356136

約数和(自身を除く): 144261

約数列:

[1, 3, 5, 15, 25, 75, 113, 125, 339, 375, 565, 625, 1695, 1875, 2825, 8475, 14125, 42375, 70625, 211875]

約数ペア:

[(1, 211875), (3, 70625), (5, 42375), (15, 14125), (25, 8475), (75, 2825), (113, 1875), (125, 1695), (339, 625), (375, 565)]