21638928

素因数分解:

$2^4\times 3^1\times {\mathrm{450811}}^1$

素因数の和:450822

約数の個数: 20

約数和(自身を含む): 55900688

約数和(自身を除く): 34261760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 450811, 901622, 1352433, 1803244, 2704866, 3606488, 5409732, 7212976, 10819464, 21638928]

約数ペア:

[(1, 21638928), (2, 10819464), (3, 7212976), (4, 5409732), (6, 3606488), (8, 2704866), (12, 1803244), (16, 1352433), (24, 901622), (48, 450811)]