21278508713

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{953}}^1\times {\mathrm{289973}}^1$

素因数の和:290944

約数の個数: 16

約数和(自身を含む): 26556978816

約数和(自身を除く): 5278470103

約数列:

[1, 7, 11, 77, 953, 6671, 10483, 73381, 289973, 2029811, 3189703, 22327921, 276344269, 1934409883, 3039786959, 21278508713]

約数ペア:

[(1, 21278508713), (7, 3039786959), (11, 1934409883), (77, 276344269), (953, 22327921), (6671, 3189703), (10483, 2029811), (73381, 289973)]