78820161

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 123813888

約数和(自身を除く): 44993727

約数列:

[1, 3, 7, 21, 43, 129, 191, 301, 457, 573, 903, 1337, 1371, 3199, 4011, 8213, 9597, 19651, 24639, 57491, 58953, 87287, 137557, 172473, 261861, 412671, 611009, 1833027, 3753341, 11260023, 26273387, 78820161]

約数ペア:

[(1, 78820161), (3, 26273387), (7, 11260023), (21, 3753341), (43, 1833027), (129, 611009), (191, 412671), (301, 261861), (457, 172473), (573, 137557), (903, 87287), (1337, 58953), (1371, 57491), (3199, 24639), (4011, 19651), (8213, 9597)]