18704413

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 23529408

約数和(自身を除く): 4824995

約数列:

[1, 7, 13, 91, 97, 163, 169, 679, 1141, 1183, 1261, 2119, 8827, 14833, 15811, 16393, 27547, 110677, 114751, 192829, 205543, 1438801, 2672059, 18704413]

約数ペア:

[(1, 18704413), (7, 2672059), (13, 1438801), (91, 205543), (97, 192829), (163, 114751), (169, 110677), (679, 27547), (1141, 16393), (1183, 15811), (1261, 14833), (2119, 8827)]