21420163

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 2449277

約数列:

[1, 19, 31, 41, 589, 779, 887, 1271, 16853, 24149, 27497, 36367, 522443, 690973, 1127377, 21420163]

約数ペア:

[(1, 21420163), (19, 1127377), (31, 690973), (41, 522443), (589, 36367), (779, 27497), (887, 24149), (1271, 16853)]