21928809

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{25469}}^1$

素因数の和:25520

約数の個数: 16

約数和(自身を含む): 34231680

約数和(自身を除く): 12302871

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 25469, 76407, 178283, 534849, 1044229, 3132687, 7309603, 21928809]

約数ペア:

[(1, 21928809), (3, 7309603), (7, 3132687), (21, 1044229), (41, 534849), (123, 178283), (287, 76407), (861, 25469)]