21390033

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27529}}^1$

素因数の和:27576

約数の個数: 16

約数和(自身を含む): 33476480

約数和(自身を除く): 12086447

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27529, 82587, 192703, 578109, 1018573, 3055719, 7130011, 21390033]

約数ペア:

[(1, 21390033), (3, 7130011), (7, 3055719), (21, 1018573), (37, 578109), (111, 192703), (259, 82587), (777, 27529)]