18991618

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{9157}}^1$

素因数の和:9237

約数の個数: 16

約数和(自身を含む): 30660984

約数和(自身を除く): 11669366

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 9157, 18314, 155669, 311338, 558577, 1117154, 9495809, 18991618]

約数ペア:

[(1, 18991618), (2, 9495809), (17, 1117154), (34, 558577), (61, 311338), (122, 155669), (1037, 18314), (2074, 9157)]