21690825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22247}}^1$

素因数の和:22273

約数の個数: 24

約数和(自身を含む): 38622528

約数和(自身を除く): 16931703

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22247, 66741, 111235, 289211, 333705, 556175, 867633, 1446055, 1668525, 4338165, 7230275, 21690825]

約数ペア:

[(1, 21690825), (3, 7230275), (5, 4338165), (13, 1668525), (15, 1446055), (25, 867633), (39, 556175), (65, 333705), (75, 289211), (195, 111235), (325, 66741), (975, 22247)]