21491766

素因数分解:

$2^1\times 3^2\times {\mathrm{541}}^1\times {\mathrm{2207}}^1$

素因数の和:2756

約数の個数: 24

約数和(自身を含む): 46672704

約数和(自身を除く): 25180938

約数列:

[1, 2, 3, 6, 9, 18, 541, 1082, 1623, 2207, 3246, 4414, 4869, 6621, 9738, 13242, 19863, 39726, 1193987, 2387974, 3581961, 7163922, 10745883, 21491766]

約数ペア:

[(1, 21491766), (2, 10745883), (3, 7163922), (6, 3581961), (9, 2387974), (18, 1193987), (541, 39726), (1082, 19863), (1623, 13242), (2207, 9738), (3246, 6621), (4414, 4869)]