21322112

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 49572000

約数和(自身を除く): 28249888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 448, 449, 742, 848, 896, 898, 1484, 1696, 1796, 2968, 3143, 3392, 3592, 5936, 6286, 6784, 7184, 11872, 12572, 14368, 23744, 23797, 25144, 28736, 47488, 47594, 50288, 57472, 95188, 100576, 166579, 190376, 201152, 333158, 380752, 402304, 666316, 761504, 1332632, 1523008, 2665264, 3046016, 5330528, 10661056, 21322112]

約数ペア:

[(1, 21322112), (2, 10661056), (4, 5330528), (7, 3046016), (8, 2665264), (14, 1523008), (16, 1332632), (28, 761504), (32, 666316), (53, 402304), (56, 380752), (64, 333158), (106, 201152), (112, 190376), (128, 166579), (212, 100576), (224, 95188), (371, 57472), (424, 50288), (448, 47594), (449, 47488), (742, 28736), (848, 25144), (896, 23797), (898, 23744), (1484, 14368), (1696, 12572), (1796, 11872), (2968, 7184), (3143, 6784), (3392, 6286), (3592, 5936)]