21939375

素因数分解:

$3^1\times 5^4\times {\mathrm{11701}}^1$

素因数の和:11724

約数の個数: 20

約数和(自身を含む): 36557048

約数和(自身を除く): 14617673

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 11701, 35103, 58505, 175515, 292525, 877575, 1462625, 4387875, 7313125, 21939375]

約数ペア:

[(1, 21939375), (3, 7313125), (5, 4387875), (15, 1462625), (25, 877575), (75, 292525), (125, 175515), (375, 58505), (625, 35103), (1875, 11701)]