201657981

素因数分解:

$3^1\times 7^2\times {\mathrm{859}}^1\times {\mathrm{1597}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 313335840

約数和(自身を除く): 111677859

約数列:

[1, 3, 7, 21, 49, 147, 859, 1597, 2577, 4791, 6013, 11179, 18039, 33537, 42091, 78253, 126273, 234759, 1371823, 4115469, 9602761, 28808283, 67219327, 201657981]

約数ペア:

[(1, 201657981), (3, 67219327), (7, 28808283), (21, 9602761), (49, 4115469), (147, 1371823), (859, 234759), (1597, 126273), (2577, 78253), (4791, 42091), (6013, 33537), (11179, 18039)]