20616456

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:443

約数の個数: 96

約数和(自身を含む): 61395840

約数和(自身を除く): 40779384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 49, 56, 84, 94, 98, 141, 147, 168, 188, 196, 282, 294, 329, 373, 376, 392, 564, 588, 658, 746, 987, 1119, 1128, 1176, 1316, 1492, 1974, 2238, 2303, 2611, 2632, 2984, 3948, 4476, 4606, 5222, 6909, 7833, 7896, 8952, 9212, 10444, 13818, 15666, 17531, 18277, 18424, 20888, 27636, 31332, 35062, 36554, 52593, 54831, 55272, 62664, 70124, 73108, 105186, 109662, 122717, 140248, 146216, 210372, 219324, 245434, 368151, 420744, 438648, 490868, 736302, 859019, 981736, 1472604, 1718038, 2577057, 2945208, 3436076, 5154114, 6872152, 10308228, 20616456]

約数ペア:

[(1, 20616456), (2, 10308228), (3, 6872152), (4, 5154114), (6, 3436076), (7, 2945208), (8, 2577057), (12, 1718038), (14, 1472604), (21, 981736), (24, 859019), (28, 736302), (42, 490868), (47, 438648), (49, 420744), (56, 368151), (84, 245434), (94, 219324), (98, 210372), (141, 146216), (147, 140248), (168, 122717), (188, 109662), (196, 105186), (282, 73108), (294, 70124), (329, 62664), (373, 55272), (376, 54831), (392, 52593), (564, 36554), (588, 35062), (658, 31332), (746, 27636), (987, 20888), (1119, 18424), (1128, 18277), (1176, 17531), (1316, 15666), (1492, 13818), (1974, 10444), (2238, 9212), (2303, 8952), (2611, 7896), (2632, 7833), (2984, 6909), (3948, 5222), (4476, 4606)]