21396711

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24851}}^1$

素因数の和:24902

約数の個数: 16

約数和(自身を含む): 33401088

約数和(自身を除く): 12004377

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24851, 74553, 173957, 521871, 1018891, 3056673, 7132237, 21396711]

約数ペア:

[(1, 21396711), (3, 7132237), (7, 3056673), (21, 1018891), (41, 521871), (123, 173957), (287, 74553), (861, 24851)]