81409923

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{10859}}^1$

素因数の和:10896

約数の個数: 36

約数和(自身を含む): 144850680

約数和(自身を除く): 63440757

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 7497, 10859, 32577, 76013, 97731, 184603, 228039, 532091, 553809, 684117, 1292221, 1596273, 1661427, 3876663, 4788819, 9045547, 11629989, 27136641, 81409923]

約数ペア:

[(1, 81409923), (3, 27136641), (7, 11629989), (9, 9045547), (17, 4788819), (21, 3876663), (49, 1661427), (51, 1596273), (63, 1292221), (119, 684117), (147, 553809), (153, 532091), (357, 228039), (441, 184603), (833, 97731), (1071, 76013), (2499, 32577), (7497, 10859)]