21164025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12269}}^1$

素因数の和:12305

約数の個数: 24

約数和(自身を含む): 36515520

約数和(自身を除く): 15351495

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12269, 36807, 61345, 184035, 282187, 306725, 846561, 920175, 1410935, 4232805, 7054675, 21164025]

約数ペア:

[(1, 21164025), (3, 7054675), (5, 4232805), (15, 1410935), (23, 920175), (25, 846561), (69, 306725), (75, 282187), (115, 184035), (345, 61345), (575, 36807), (1725, 12269)]