210815979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{20809}}^1$

素因数の和:21130

約数の個数: 16

約数和(自身を含む): 307655040

約数和(自身を除く): 96839061

約数列:

[1, 3, 11, 33, 307, 921, 3377, 10131, 20809, 62427, 228899, 686697, 6388363, 19165089, 70271993, 210815979]

約数ペア:

[(1, 210815979), (3, 70271993), (11, 19165089), (33, 6388363), (307, 686697), (921, 228899), (3377, 62427), (10131, 20809)]