20865006

素因数分解:

$2^1\times 3^3\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 48307200

約数和(自身を除く): 27442194

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 73, 79, 134, 146, 158, 201, 219, 237, 402, 438, 474, 603, 657, 711, 1206, 1314, 1422, 1809, 1971, 2133, 3618, 3942, 4266, 4891, 5293, 5767, 9782, 10586, 11534, 14673, 15879, 17301, 29346, 31758, 34602, 44019, 47637, 51903, 88038, 95274, 103806, 132057, 142911, 155709, 264114, 285822, 311418, 386389, 772778, 1159167, 2318334, 3477501, 6955002, 10432503, 20865006]

約数ペア:

[(1, 20865006), (2, 10432503), (3, 6955002), (6, 3477501), (9, 2318334), (18, 1159167), (27, 772778), (54, 386389), (67, 311418), (73, 285822), (79, 264114), (134, 155709), (146, 142911), (158, 132057), (201, 103806), (219, 95274), (237, 88038), (402, 51903), (438, 47637), (474, 44019), (603, 34602), (657, 31758), (711, 29346), (1206, 17301), (1314, 15879), (1422, 14673), (1809, 11534), (1971, 10586), (2133, 9782), (3618, 5767), (3942, 5293), (4266, 4891)]