31261839

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 48921600

約数和(自身を除く): 17659761

約数列:

[1, 3, 7, 21, 97, 103, 149, 291, 309, 447, 679, 721, 1043, 2037, 2163, 3129, 9991, 14453, 15347, 29973, 43359, 46041, 69937, 101171, 107429, 209811, 303513, 322287, 1488659, 4465977, 10420613, 31261839]

約数ペア:

[(1, 31261839), (3, 10420613), (7, 4465977), (21, 1488659), (97, 322287), (103, 303513), (149, 209811), (291, 107429), (309, 101171), (447, 69937), (679, 46041), (721, 43359), (1043, 29973), (2037, 15347), (2163, 14453), (3129, 9991)]