21333776

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1913}}^1$

素因数の和:1979

約数の個数: 40

約数和(自身を含む): 44856504

約数和(自身を除く): 23522728

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1913, 2788, 3826, 5576, 7652, 11152, 15304, 30608, 32521, 65042, 78433, 130084, 156866, 260168, 313732, 520336, 627464, 1254928, 1333361, 2666722, 5333444, 10666888, 21333776]

約数ペア:

[(1, 21333776), (2, 10666888), (4, 5333444), (8, 2666722), (16, 1333361), (17, 1254928), (34, 627464), (41, 520336), (68, 313732), (82, 260168), (136, 156866), (164, 130084), (272, 78433), (328, 65042), (656, 32521), (697, 30608), (1394, 15304), (1913, 11152), (2788, 7652), (3826, 5576)]