201997159

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 257040000

約数和(自身を除く): 55042841

約数列:

[1, 7, 13, 49, 89, 91, 343, 509, 623, 637, 1157, 3563, 4361, 4459, 6617, 8099, 24941, 30527, 45301, 46319, 56693, 174587, 317107, 324233, 396851, 588913, 2219749, 2269631, 4122391, 15538243, 28856737, 201997159]

約数ペア:

[(1, 201997159), (7, 28856737), (13, 15538243), (49, 4122391), (89, 2269631), (91, 2219749), (343, 588913), (509, 396851), (623, 324233), (637, 317107), (1157, 174587), (3563, 56693), (4361, 46319), (4459, 45301), (6617, 30527), (8099, 24941)]