291005

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:77

約数の個数: 24

約数和(自身を含む): 424536

約数和(自身を除く): 133531

約数列:

[1, 5, 11, 13, 37, 55, 65, 121, 143, 185, 407, 481, 605, 715, 1573, 2035, 2405, 4477, 5291, 7865, 22385, 26455, 58201, 291005]

約数ペア:

[(1, 291005), (5, 58201), (11, 26455), (13, 22385), (37, 7865), (55, 5291), (65, 4477), (121, 2405), (143, 2035), (185, 1573), (407, 715), (481, 605)]