78974721

素因数分解:

$3^2\times 7^3\times {\mathrm{25583}}^1$

素因数の和:25610

約数の個数: 24

約数和(自身を含む): 133036800

約数和(自身を除く): 54062079

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 25583, 76749, 179081, 230247, 537243, 1253567, 1611729, 3760701, 8774969, 11282103, 26324907, 78974721]

約数ペア:

[(1, 78974721), (3, 26324907), (7, 11282103), (9, 8774969), (21, 3760701), (49, 1611729), (63, 1253567), (147, 537243), (343, 230247), (441, 179081), (1029, 76749), (3087, 25583)]