28199171

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 38552976

約数和(自身を除く): 10353805

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 169, 197, 847, 1001, 1183, 1379, 1573, 1859, 2167, 2561, 11011, 13013, 15169, 17927, 20449, 23837, 28171, 33293, 143143, 166859, 197197, 233051, 309881, 366223, 2169167, 2563561, 4028453, 28199171]

約数ペア:

[(1, 28199171), (7, 4028453), (11, 2563561), (13, 2169167), (77, 366223), (91, 309881), (121, 233051), (143, 197197), (169, 166859), (197, 143143), (847, 33293), (1001, 28171), (1183, 23837), (1379, 20449), (1573, 17927), (1859, 15169), (2167, 13013), (2561, 11011)]