201217815

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{41023}}^1$

素因数の和:41143

約数の個数: 24

約数和(自身を含む): 351985920

約数和(自身を除く): 150768105

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905, 41023, 123069, 205115, 369207, 615345, 1846035, 4471507, 13414521, 22357535, 40243563, 67072605, 201217815]

約数ペア:

[(1, 201217815), (3, 67072605), (5, 40243563), (9, 22357535), (15, 13414521), (45, 4471507), (109, 1846035), (327, 615345), (545, 369207), (981, 205115), (1635, 123069), (4905, 41023)]