201620321

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{2437}}^1$

素因数の和:2720

約数の個数: 16

約数和(自身を含む): 235920384

約数和(自身を除く): 34300063

約数列:

[1, 7, 53, 223, 371, 1561, 2437, 11819, 17059, 82733, 129161, 543451, 904127, 3804157, 28802903, 201620321]

約数ペア:

[(1, 201620321), (7, 28802903), (53, 3804157), (223, 904127), (371, 543451), (1561, 129161), (2437, 82733), (11819, 17059)]