21295113

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24733}}^1$

素因数の和:24784

約数の個数: 16

約数和(自身を含む): 33242496

約数和(自身を除く): 11947383

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24733, 74199, 173131, 519393, 1014053, 3042159, 7098371, 21295113]

約数ペア:

[(1, 21295113), (3, 7098371), (7, 3042159), (21, 1014053), (41, 519393), (123, 173131), (287, 74199), (861, 24733)]