21400467

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1031}}^1$

素因数の和:1099

約数の個数: 32

約数和(自身を含む): 33882624

約数和(自身を除く): 12482157

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 1031, 1221, 1887, 3093, 6919, 11341, 17527, 20757, 34023, 38147, 52581, 114441, 192797, 419617, 578391, 648499, 1258851, 1945497, 7133489, 21400467]

約数ペア:

[(1, 21400467), (3, 7133489), (11, 1945497), (17, 1258851), (33, 648499), (37, 578391), (51, 419617), (111, 192797), (187, 114441), (407, 52581), (561, 38147), (629, 34023), (1031, 20757), (1221, 17527), (1887, 11341), (3093, 6919)]