21657273

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{7907}}^1$

素因数の和:8004

約数の個数: 16

約数和(自身を含む): 31885056

約数和(自身を除く): 10227783

約数列:

[1, 3, 11, 33, 83, 249, 913, 2739, 7907, 23721, 86977, 260931, 656281, 1968843, 7219091, 21657273]

約数ペア:

[(1, 21657273), (3, 7219091), (11, 1968843), (33, 656281), (83, 260931), (249, 86977), (913, 23721), (2739, 7907)]