139757891

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 177020928

約数和(自身を除く): 37263037

約数列:

[1, 7, 13, 71, 91, 97, 223, 497, 679, 923, 1261, 1561, 2899, 6461, 6887, 8827, 15833, 20293, 21631, 48209, 89531, 110831, 151417, 205829, 281203, 626717, 1440803, 1535801, 1968421, 10750607, 19965413, 139757891]

約数ペア:

[(1, 139757891), (7, 19965413), (13, 10750607), (71, 1968421), (91, 1535801), (97, 1440803), (223, 626717), (497, 281203), (679, 205829), (923, 151417), (1261, 110831), (1561, 89531), (2899, 48209), (6461, 21631), (6887, 20293), (8827, 15833)]