18639726

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10321}}^1$

素因数の和:10376

約数の個数: 32

約数和(自身を含む): 43600128

約数和(自身を除く): 24960402

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 10321, 20642, 30963, 61926, 72247, 144494, 216741, 433482, 443803, 887606, 1331409, 2662818, 3106621, 6213242, 9319863, 18639726]

約数ペア:

[(1, 18639726), (2, 9319863), (3, 6213242), (6, 3106621), (7, 2662818), (14, 1331409), (21, 887606), (42, 443803), (43, 433482), (86, 216741), (129, 144494), (258, 72247), (301, 61926), (602, 30963), (903, 20642), (1806, 10321)]