20994075

素因数分解:

$3^2\times 5^2\times {\mathrm{93307}}^1$

素因数の和:93323

約数の個数: 18

約数和(自身を含む): 37603124

約数和(自身を除く): 16609049

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 93307, 279921, 466535, 839763, 1399605, 2332675, 4198815, 6998025, 20994075]

約数ペア:

[(1, 20994075), (3, 6998025), (5, 4198815), (9, 2332675), (15, 1399605), (25, 839763), (45, 466535), (75, 279921), (225, 93307)]