1991567151

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{355193}}^1$

素因数の和:355295

約数の個数: 24

約数和(自身を含む): 3324615840

約数和(自身を除く): 1333048689

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 5607, 355193, 1065579, 2486351, 3196737, 7459053, 22377159, 31612177, 94836531, 221285239, 284509593, 663855717, 1991567151]

約数ペア:

[(1, 1991567151), (3, 663855717), (7, 284509593), (9, 221285239), (21, 94836531), (63, 31612177), (89, 22377159), (267, 7459053), (623, 3196737), (801, 2486351), (1869, 1065579), (5607, 355193)]