21307413

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{821}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 29276352

約数和(自身を除く): 7968939

約数列:

[1, 3, 41, 123, 211, 633, 821, 2463, 8651, 25953, 33661, 100983, 173231, 519693, 7102471, 21307413]

約数ペア:

[(1, 21307413), (3, 7102471), (41, 519693), (123, 173231), (211, 100983), (633, 33661), (821, 25953), (2463, 8651)]