17998821

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 27955200

約数和(自身を除く): 9956379

約数列:

[1, 3, 9, 27, 29, 87, 127, 181, 261, 381, 543, 783, 1143, 1629, 3429, 3683, 4887, 5249, 11049, 15747, 22987, 33147, 47241, 68961, 99441, 141723, 206883, 620649, 666623, 1999869, 5999607, 17998821]

約数ペア:

[(1, 17998821), (3, 5999607), (9, 1999869), (27, 666623), (29, 620649), (87, 206883), (127, 141723), (181, 99441), (261, 68961), (381, 47241), (543, 33147), (783, 22987), (1143, 15747), (1629, 11049), (3429, 5249), (3683, 4887)]