21286788

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{104347}}^1$

素因数の和:104371

約数の個数: 24

約数和(自身を含む): 52591392

約数和(自身を除く): 31304604

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 104347, 208694, 313041, 417388, 626082, 1252164, 1773899, 3547798, 5321697, 7095596, 10643394, 21286788]

約数ペア:

[(1, 21286788), (2, 10643394), (3, 7095596), (4, 5321697), (6, 3547798), (12, 1773899), (17, 1252164), (34, 626082), (51, 417388), (68, 313041), (102, 208694), (204, 104347)]