209220399

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{269}}^1\times {\mathrm{971}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 307054800

約数和(自身を除く): 97834401

約数列:

[1, 3, 9, 89, 267, 269, 801, 807, 971, 2421, 2913, 8739, 23941, 71823, 86419, 215469, 259257, 261199, 777771, 783597, 2350791, 23246711, 69740133, 209220399]

約数ペア:

[(1, 209220399), (3, 69740133), (9, 23246711), (89, 2350791), (267, 783597), (269, 777771), (801, 261199), (807, 259257), (971, 215469), (2421, 86419), (2913, 71823), (8739, 23941)]