21997737

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4603}}^1$

素因数の和:4674

約数の個数: 20

約数和(自身を含む): 33425040

約数和(自身を除く): 11427303

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4603, 4779, 13809, 41427, 124281, 271577, 372843, 814731, 2444193, 7332579, 21997737]

約数ペア:

[(1, 21997737), (3, 7332579), (9, 2444193), (27, 814731), (59, 372843), (81, 271577), (177, 124281), (531, 41427), (1593, 13809), (4603, 4779)]