201800403

素因数分解:

$3^4\times 7^1\times {\mathrm{355909}}^1$

素因数の和:355928

約数の個数: 20

約数和(自身を含む): 344520880

約数和(自身を除く): 142720477

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 355909, 1067727, 2491363, 3203181, 7474089, 9609543, 22422267, 28828629, 67266801, 201800403]

約数ペア:

[(1, 201800403), (3, 67266801), (7, 28828629), (9, 22422267), (21, 9609543), (27, 7474089), (63, 3203181), (81, 2491363), (189, 1067727), (567, 355909)]