21781220763

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{16411}}^1\times {\mathrm{9413}}^1$

素因数の和:25874

約数の個数: 16

約数和(自身を含む): 29664493056

約数和(自身を除く): 7883272293

約数列:

[1, 3, 47, 141, 9413, 16411, 28239, 49233, 442411, 771317, 1327233, 2313951, 154476743, 463430229, 7260406921, 21781220763]

約数ペア:

[(1, 21781220763), (3, 7260406921), (47, 463430229), (141, 154476743), (9413, 2313951), (16411, 1327233), (28239, 771317), (49233, 442411)]