21273395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29753}}^1$

素因数の和:29782

約数の個数: 16

約数和(自身を含む): 29992032

約数和(自身を除く): 8718637

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29753, 148765, 327283, 386789, 1636415, 1933945, 4254679, 21273395]

約数ペア:

[(1, 21273395), (5, 4254679), (11, 1933945), (13, 1636415), (55, 386789), (65, 327283), (143, 148765), (715, 29753)]