21786875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{3169}}^1$

素因数の和:3200

約数の個数: 20

約数和(自身を含む): 29709240

約数和(自身を除く): 7922365

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 3169, 6875, 15845, 34859, 79225, 174295, 396125, 871475, 1980625, 4357375, 21786875]

約数ペア:

[(1, 21786875), (5, 4357375), (11, 1980625), (25, 871475), (55, 396125), (125, 174295), (275, 79225), (625, 34859), (1375, 15845), (3169, 6875)]