20421777

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{12917}}^1$

素因数の和:12968

約数の個数: 16

約数和(自身を含む): 29763072

約数和(自身を除く): 9341295

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 12917, 38751, 219589, 400427, 658767, 1201281, 6807259, 20421777]

約数ペア:

[(1, 20421777), (3, 6807259), (17, 1201281), (31, 658767), (51, 400427), (93, 219589), (527, 38751), (1581, 12917)]