18390790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15199}}^1$

素因数の和:15228

約数の個数: 24

約数和(自身を含む): 36388800

約数和(自身を除く): 17998010

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 15199, 30398, 75995, 151990, 167189, 334378, 835945, 1671890, 1839079, 3678158, 9195395, 18390790]

約数ペア:

[(1, 18390790), (2, 9195395), (5, 3678158), (10, 1839079), (11, 1671890), (22, 835945), (55, 334378), (110, 167189), (121, 151990), (242, 75995), (605, 30398), (1210, 15199)]