21653885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{6673}}^1$

素因数の和:6748

約数の個数: 16

約数和(自身を含む): 28831680

約数和(自身を除く): 7177795

約数列:

[1, 5, 11, 55, 59, 295, 649, 3245, 6673, 33365, 73403, 367015, 393707, 1968535, 4330777, 21653885]

約数ペア:

[(1, 21653885), (5, 4330777), (11, 1968535), (55, 393707), (59, 367015), (295, 73403), (649, 33365), (3245, 6673)]