28000557

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2689}}^1$

素因数の和:2797

約数の個数: 24

約数和(自身を含む): 44062200

約数和(自身を除く): 16061643

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 2689, 3471, 8067, 10413, 24201, 34957, 104871, 239321, 314613, 717963, 2153889, 3111173, 9333519, 28000557]

約数ペア:

[(1, 28000557), (3, 9333519), (9, 3111173), (13, 2153889), (39, 717963), (89, 314613), (117, 239321), (267, 104871), (801, 34957), (1157, 24201), (2689, 10413), (3471, 8067)]