21828213

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{7603}}^1$

素因数の和:7649

約数の個数: 24

約数和(自身を含む): 35586720

約数和(自身を除く): 13758507

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 261, 319, 957, 2871, 7603, 22809, 68427, 83633, 220487, 250899, 661461, 752697, 1984383, 2425357, 7276071, 21828213]

約数ペア:

[(1, 21828213), (3, 7276071), (9, 2425357), (11, 1984383), (29, 752697), (33, 661461), (87, 250899), (99, 220487), (261, 83633), (319, 68427), (957, 22809), (2871, 7603)]