19905597

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1973}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 30794400

約数和(自身を除く): 10888803

約数列:

[1, 3, 9, 19, 57, 59, 171, 177, 531, 1121, 1973, 3363, 5919, 10089, 17757, 37487, 112461, 116407, 337383, 349221, 1047663, 2211733, 6635199, 19905597]

約数ペア:

[(1, 19905597), (3, 6635199), (9, 2211733), (19, 1047663), (57, 349221), (59, 337383), (171, 116407), (177, 112461), (531, 37487), (1121, 17757), (1973, 10089), (3363, 5919)]