21901875

素因数分解:

$3^1\times 5^4\times {\mathrm{11681}}^1$

素因数の和:11704

約数の個数: 20

約数和(自身を含む): 36494568

約数和(自身を除く): 14592693

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 11681, 35043, 58405, 175215, 292025, 876075, 1460125, 4380375, 7300625, 21901875]

約数ペア:

[(1, 21901875), (3, 7300625), (5, 4380375), (15, 1460125), (25, 876075), (75, 292025), (125, 175215), (375, 58405), (625, 35043), (1875, 11681)]