21171486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9511}}^1$

素因数の和:9576

約数の個数: 32

約数和(自身を含む): 49310208

約数和(自身を除く): 28138722

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9511, 19022, 28533, 57066, 66577, 133154, 199731, 399462, 504083, 1008166, 1512249, 3024498, 3528581, 7057162, 10585743, 21171486]

約数ペア:

[(1, 21171486), (2, 10585743), (3, 7057162), (6, 3528581), (7, 3024498), (14, 1512249), (21, 1008166), (42, 504083), (53, 399462), (106, 199731), (159, 133154), (318, 66577), (371, 57066), (742, 28533), (1113, 19022), (2226, 9511)]