21568577552

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{890969}}^1$

素因数の和:891083

約数の個数: 40

約数和(自身を含む): 44744513400

約数和(自身を除く): 23175935848

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 712, 1424, 1513, 3026, 6052, 12104, 24208, 890969, 1781938, 3563876, 7127752, 14255504, 15146473, 30292946, 60585892, 79296241, 121171784, 158592482, 242343568, 317184964, 634369928, 1268739856, 1348036097, 2696072194, 5392144388, 10784288776, 21568577552]

約数ペア:

[(1, 21568577552), (2, 10784288776), (4, 5392144388), (8, 2696072194), (16, 1348036097), (17, 1268739856), (34, 634369928), (68, 317184964), (89, 242343568), (136, 158592482), (178, 121171784), (272, 79296241), (356, 60585892), (712, 30292946), (1424, 15146473), (1513, 14255504), (3026, 7127752), (6052, 3563876), (12104, 1781938), (24208, 890969)]