21640884

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 31702476

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 89, 92, 138, 178, 267, 276, 356, 534, 881, 1068, 1762, 2047, 2643, 3524, 4094, 5286, 6141, 8188, 10572, 12282, 20263, 24564, 40526, 60789, 78409, 81052, 121578, 156818, 235227, 243156, 313636, 470454, 940908, 1803407, 3606814, 5410221, 7213628, 10820442, 21640884]

約数ペア:

[(1, 21640884), (2, 10820442), (3, 7213628), (4, 5410221), (6, 3606814), (12, 1803407), (23, 940908), (46, 470454), (69, 313636), (89, 243156), (92, 235227), (138, 156818), (178, 121578), (267, 81052), (276, 78409), (356, 60789), (534, 40526), (881, 24564), (1068, 20263), (1762, 12282), (2047, 10572), (2643, 8188), (3524, 6141), (4094, 5286)]