51989379

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 77220864

約数和(自身を除く): 25231485

約数列:

[1, 3, 13, 39, 47, 113, 141, 251, 339, 611, 753, 1469, 1833, 3263, 4407, 5311, 9789, 11797, 15933, 28363, 35391, 69043, 85089, 153361, 207129, 368719, 460083, 1106157, 1333061, 3999183, 17329793, 51989379]

約数ペア:

[(1, 51989379), (3, 17329793), (13, 3999183), (39, 1333061), (47, 1106157), (113, 460083), (141, 368719), (251, 207129), (339, 153361), (611, 85089), (753, 69043), (1469, 35391), (1833, 28363), (3263, 15933), (4407, 11797), (5311, 9789)]