217899275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{18427}}^1$

素因数の和:18491

約数の個数: 24

約数和(自身を含む): 301629504

約数和(自身を除く): 83730229

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 2365, 11825, 18427, 92135, 202697, 460675, 792361, 1013485, 3961805, 5067425, 8715971, 19809025, 43579855, 217899275]

約数ペア:

[(1, 217899275), (5, 43579855), (11, 19809025), (25, 8715971), (43, 5067425), (55, 3961805), (215, 1013485), (275, 792361), (473, 460675), (1075, 202697), (2365, 92135), (11825, 18427)]