31940271

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 54996480

約数和(自身を除く): 23056209

約数列:

[1, 3, 9, 11, 27, 33, 41, 43, 61, 99, 123, 129, 183, 297, 369, 387, 451, 473, 549, 671, 1107, 1161, 1353, 1419, 1647, 1763, 2013, 2501, 2623, 4059, 4257, 5289, 6039, 7503, 7869, 12177, 12771, 15867, 18117, 19393, 22509, 23607, 27511, 28853, 47601, 58179, 67527, 70821, 82533, 86559, 107543, 174537, 247599, 259677, 322629, 523611, 742797, 779031, 967887, 1182973, 2903661, 3548919, 10646757, 31940271]

約数ペア:

[(1, 31940271), (3, 10646757), (9, 3548919), (11, 2903661), (27, 1182973), (33, 967887), (41, 779031), (43, 742797), (61, 523611), (99, 322629), (123, 259677), (129, 247599), (183, 174537), (297, 107543), (369, 86559), (387, 82533), (451, 70821), (473, 67527), (549, 58179), (671, 47601), (1107, 28853), (1161, 27511), (1353, 23607), (1419, 22509), (1647, 19393), (1763, 18117), (2013, 15867), (2501, 12771), (2623, 12177), (4059, 7869), (4257, 7503), (5289, 6039)]