72587907

素因数分解:

$3^4\times 7^1\times {\mathrm{128021}}^1$

素因数の和:128040

約数の個数: 20

約数和(自身を含む): 123925296

約数和(自身を除く): 51337389

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 128021, 384063, 896147, 1152189, 2688441, 3456567, 8065323, 10369701, 24195969, 72587907]

約数ペア:

[(1, 72587907), (3, 24195969), (7, 10369701), (9, 8065323), (21, 3456567), (27, 2688441), (63, 1152189), (81, 896147), (189, 384063), (567, 128021)]