21721018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31849}}^1$

素因数の和:31893

約数の個数: 16

約数和(自身を含む): 36691200

約数和(自身を除く): 14970182

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31849, 63698, 350339, 700678, 987319, 1974638, 10860509, 21721018]

約数ペア:

[(1, 21721018), (2, 10860509), (11, 1974638), (22, 987319), (31, 700678), (62, 350339), (341, 63698), (682, 31849)]