31978154

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{28603}}^1$

素因数の和:28661

約数の個数: 16

約数和(自身を含む): 52860192

約数和(自身を除く): 20882038

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 28603, 57206, 371839, 743678, 1229929, 2459858, 15989077, 31978154]

約数ペア:

[(1, 31978154), (2, 15989077), (13, 2459858), (26, 1229929), (43, 743678), (86, 371839), (559, 57206), (1118, 28603)]