21202797

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14278803

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 263, 349, 789, 1047, 1841, 2443, 2893, 3839, 5523, 7329, 8679, 11517, 20251, 26873, 60753, 80619, 91787, 275361, 642509, 1009657, 1927527, 3028971, 7067599, 21202797]

約数ペア:

[(1, 21202797), (3, 7067599), (7, 3028971), (11, 1927527), (21, 1009657), (33, 642509), (77, 275361), (231, 91787), (263, 80619), (349, 60753), (789, 26873), (1047, 20251), (1841, 11517), (2443, 8679), (2893, 7329), (3839, 5523)]