72189908

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{19681}}^1$

素因数の和:19823

約数の個数: 24

約数和(自身を含む): 145489344

約数和(自身を除く): 73299436

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 19681, 39362, 78724, 137767, 275534, 551068, 2578211, 5156422, 10312844, 18047477, 36094954, 72189908]

約数ペア:

[(1, 72189908), (2, 36094954), (4, 18047477), (7, 10312844), (14, 5156422), (28, 2578211), (131, 551068), (262, 275534), (524, 137767), (917, 78724), (1834, 39362), (3668, 19681)]