981911343

素因数分解:

$3^1\times 7^2\times {\mathrm{1667}}^1\times {\mathrm{4007}}^1$

素因数の和:5691

約数の個数: 24

約数和(自身を含む): 1524258432

約数和(自身を除く): 542347089

約数列:

[1, 3, 7, 21, 49, 147, 1667, 4007, 5001, 11669, 12021, 28049, 35007, 81683, 84147, 196343, 245049, 589029, 6679669, 20039007, 46757683, 140273049, 327303781, 981911343]

約数ペア:

[(1, 981911343), (3, 327303781), (7, 140273049), (21, 46757683), (49, 20039007), (147, 6679669), (1667, 589029), (4007, 245049), (5001, 196343), (11669, 84147), (12021, 81683), (28049, 35007)]