221913901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{28697}}^1$

素因数の和:28764

約数の個数: 16

約数和(自身を含む): 261725760

約数和(自身を除く): 39811859

約数列:

[1, 11, 19, 37, 209, 407, 703, 7733, 28697, 315667, 545243, 1061789, 5997673, 11679679, 20173991, 221913901]

約数ペア:

[(1, 221913901), (11, 20173991), (19, 11679679), (37, 5997673), (209, 1061789), (407, 545243), (703, 315667), (7733, 28697)]