21000565696

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{1423}}^1\times {\mathrm{20963}}^1$

素因数の和:22409

約数の個数: 56

約数和(自身を含む): 45495569664

約数和(自身を除く): 24495003968

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704, 1423, 2846, 5692, 11384, 15653, 20963, 22768, 31306, 41926, 45536, 62612, 83852, 91072, 125224, 167704, 230593, 250448, 335408, 461186, 500896, 670816, 922372, 1001792, 1341632, 1844744, 3689488, 7378976, 14757952, 29830349, 59660698, 119321396, 238642792, 328133839, 477285584, 656267678, 954571168, 1312535356, 1909142336, 2625070712, 5250141424, 10500282848, 21000565696]

約数ペア:

[(1, 21000565696), (2, 10500282848), (4, 5250141424), (8, 2625070712), (11, 1909142336), (16, 1312535356), (22, 954571168), (32, 656267678), (44, 477285584), (64, 328133839), (88, 238642792), (176, 119321396), (352, 59660698), (704, 29830349), (1423, 14757952), (2846, 7378976), (5692, 3689488), (11384, 1844744), (15653, 1341632), (20963, 1001792), (22768, 922372), (31306, 670816), (41926, 500896), (45536, 461186), (62612, 335408), (83852, 250448), (91072, 230593), (125224, 167704)]