21195225

素因数分解:

$3^2\times 5^2\times {\mathrm{94201}}^1$

素因数の和:94217

約数の個数: 18

約数和(自身を含む): 37963406

約数和(自身を除く): 16768181

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 94201, 282603, 471005, 847809, 1413015, 2355025, 4239045, 7065075, 21195225]

約数ペア:

[(1, 21195225), (3, 7065075), (5, 4239045), (9, 2355025), (15, 1413015), (25, 847809), (45, 471005), (75, 282603), (225, 94201)]