21645001

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{577}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 25968384

約数和(自身を除く): 4323383

約数列:

[1, 7, 23, 161, 233, 577, 1631, 4039, 5359, 13271, 37513, 92897, 134441, 941087, 3092143, 21645001]

約数ペア:

[(1, 21645001), (7, 3092143), (23, 941087), (161, 134441), (233, 92897), (577, 37513), (1631, 13271), (4039, 5359)]