20997018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{166643}}^1$

素因数の和:166658

約数の個数: 24

約数和(自身を含む): 51992928

約数和(自身を除く): 30995910

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 166643, 333286, 499929, 999858, 1166501, 1499787, 2333002, 2999574, 3499503, 6999006, 10498509, 20997018]

約数ペア:

[(1, 20997018), (2, 10498509), (3, 6999006), (6, 3499503), (7, 2999574), (9, 2333002), (14, 1499787), (18, 1166501), (21, 999858), (42, 499929), (63, 333286), (126, 166643)]