21188658

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2897}}^1$

素因数の和:2978

約数の個数: 32

約数和(自身を含む): 45069696

約数和(自身を除く): 23881038

約数列:

[1, 2, 3, 6, 23, 46, 53, 69, 106, 138, 159, 318, 1219, 2438, 2897, 3657, 5794, 7314, 8691, 17382, 66631, 133262, 153541, 199893, 307082, 399786, 460623, 921246, 3531443, 7062886, 10594329, 21188658]

約数ペア:

[(1, 21188658), (2, 10594329), (3, 7062886), (6, 3531443), (23, 921246), (46, 460623), (53, 399786), (69, 307082), (106, 199893), (138, 153541), (159, 133262), (318, 66631), (1219, 17382), (2438, 8691), (2897, 7314), (3657, 5794)]