28725123

素因数分解:

$3^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{743}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 44782848

約数和(自身を除く): 16057725

約数列:

[1, 3, 7, 21, 49, 147, 263, 743, 789, 1841, 2229, 5201, 5523, 12887, 15603, 36407, 38661, 109221, 195409, 586227, 1367863, 4103589, 9575041, 28725123]

約数ペア:

[(1, 28725123), (3, 9575041), (7, 4103589), (21, 1367863), (49, 586227), (147, 195409), (263, 109221), (743, 38661), (789, 36407), (1841, 15603), (2229, 12887), (5201, 5523)]