28747761

素因数分解:

$3^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{727}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 44815680

約数和(自身を除く): 16067919

約数列:

[1, 3, 7, 21, 49, 147, 269, 727, 807, 1883, 2181, 5089, 5649, 13181, 15267, 35623, 39543, 106869, 195563, 586689, 1368941, 4106823, 9582587, 28747761]

約数ペア:

[(1, 28747761), (3, 9582587), (7, 4106823), (21, 1368941), (49, 586689), (147, 195563), (269, 106869), (727, 39543), (807, 35623), (1883, 15267), (2181, 13181), (5089, 5649)]