72904221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 116449788

約数和(自身を除く): 43545567

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 337, 387, 559, 1011, 1677, 1849, 3033, 4381, 5031, 5547, 13143, 14491, 16641, 24037, 39429, 43473, 72111, 130419, 188383, 216333, 565149, 623113, 1695447, 1869339, 5608017, 8100469, 24301407, 72904221]

約数ペア:

[(1, 72904221), (3, 24301407), (9, 8100469), (13, 5608017), (39, 1869339), (43, 1695447), (117, 623113), (129, 565149), (337, 216333), (387, 188383), (559, 130419), (1011, 72111), (1677, 43473), (1849, 39429), (3033, 24037), (4381, 16641), (5031, 14491), (5547, 13143)]