21225710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192961}}^1$

素因数の和:192979

約数の個数: 16

約数和(自身を含む): 41679792

約数和(自身を除く): 20454082

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192961, 385922, 964805, 1929610, 2122571, 4245142, 10612855, 21225710]

約数ペア:

[(1, 21225710), (2, 10612855), (5, 4245142), (10, 2122571), (11, 1929610), (22, 964805), (55, 385922), (110, 192961)]