21143003

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{3203}}^1$

素因数の和:3274

約数の個数: 16

約数和(自身を含む): 25837056

約数和(自身を除く): 4694053

約数列:

[1, 7, 23, 41, 161, 287, 943, 3203, 6601, 22421, 73669, 131323, 515683, 919261, 3020429, 21143003]

約数ペア:

[(1, 21143003), (7, 3020429), (23, 919261), (41, 515683), (161, 131323), (287, 73669), (943, 22421), (3203, 6601)]