28678251

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{10753}}^1$

素因数の和:10890

約数の個数: 16

約数和(自身を含む): 44048384

約数和(自身を除く): 15370133

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 10753, 32259, 75271, 225813, 1365631, 4096893, 9559417, 28678251]

約数ペア:

[(1, 28678251), (3, 9559417), (7, 4096893), (21, 1365631), (127, 225813), (381, 75271), (889, 32259), (2667, 10753)]