18973801

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{293}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 24583104

約数和(自身を除く): 5609303

約数列:

[1, 7, 11, 29, 77, 203, 293, 319, 841, 2051, 2233, 3223, 5887, 8497, 9251, 22561, 59479, 64757, 93467, 246413, 654269, 1724891, 2710543, 18973801]

約数ペア:

[(1, 18973801), (7, 2710543), (11, 1724891), (29, 654269), (77, 246413), (203, 93467), (293, 64757), (319, 59479), (841, 22561), (2051, 9251), (2233, 8497), (3223, 5887)]