19775709

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4457}}^1$

素因数の和:4509

約数の個数: 24

約数和(自身を含む): 31295160

約数和(自身を除く): 11519451

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 4457, 13371, 40113, 75769, 129253, 227307, 387759, 681921, 1163277, 2197301, 6591903, 19775709]

約数ペア:

[(1, 19775709), (3, 6591903), (9, 2197301), (17, 1163277), (29, 681921), (51, 387759), (87, 227307), (153, 129253), (261, 75769), (493, 40113), (1479, 13371), (4437, 4457)]