21575475

素因数分解:

$3^2\times 5^2\times {\mathrm{95891}}^1$

素因数の和:95907

約数の個数: 18

約数和(自身を含む): 38644476

約数和(自身を除く): 17069001

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 95891, 287673, 479455, 863019, 1438365, 2397275, 4315095, 7191825, 21575475]

約数ペア:

[(1, 21575475), (3, 7191825), (5, 4315095), (9, 2397275), (15, 1438365), (25, 863019), (45, 479455), (75, 287673), (225, 95891)]