21227206

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 23479610

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 46, 77, 91, 143, 154, 161, 182, 253, 286, 299, 322, 461, 506, 598, 922, 1001, 1771, 2002, 2093, 3227, 3289, 3542, 4186, 5071, 5993, 6454, 6578, 10142, 10603, 11986, 21206, 23023, 35497, 41951, 46046, 65923, 70994, 74221, 83902, 116633, 131846, 137839, 148442, 233266, 275678, 461461, 816431, 922922, 964873, 1516229, 1632862, 1929746, 3032458, 10613603, 21227206]

約数ペア:

[(1, 21227206), (2, 10613603), (7, 3032458), (11, 1929746), (13, 1632862), (14, 1516229), (22, 964873), (23, 922922), (26, 816431), (46, 461461), (77, 275678), (91, 233266), (143, 148442), (154, 137839), (161, 131846), (182, 116633), (253, 83902), (286, 74221), (299, 70994), (322, 65923), (461, 46046), (506, 41951), (598, 35497), (922, 23023), (1001, 21206), (1771, 11986), (2002, 10603), (2093, 10142), (3227, 6578), (3289, 6454), (3542, 5993), (4186, 5071)]