28781145

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3697}}^1$

素因数の和:3881

約数の個数: 24

約数和(自身を含む): 50189256

約数和(自身を除く): 21408111

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 3697, 7785, 11091, 18485, 33273, 55455, 166365, 639581, 1918743, 3197905, 5756229, 9593715, 28781145]

約数ペア:

[(1, 28781145), (3, 9593715), (5, 5756229), (9, 3197905), (15, 1918743), (45, 639581), (173, 166365), (519, 55455), (865, 33273), (1557, 18485), (2595, 11091), (3697, 7785)]