19210725

素因数分解:

$3^2\times 5^2\times {\mathrm{85381}}^1$

素因数の和:85397

約数の個数: 18

約数和(自身を含む): 34408946

約数和(自身を除く): 15198221

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 85381, 256143, 426905, 768429, 1280715, 2134525, 3842145, 6403575, 19210725]

約数ペア:

[(1, 19210725), (3, 6403575), (5, 3842145), (9, 2134525), (15, 1280715), (25, 768429), (45, 426905), (75, 256143), (225, 85381)]