1821988084

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{13679}}^1$

素因数の和:13828

約数の個数: 48

約数和(自身を含む): 3750727680

約数和(自身を除く): 1928739596

約数列:

[1, 2, 4, 7, 14, 28, 67, 71, 134, 142, 268, 284, 469, 497, 938, 994, 1876, 1988, 4757, 9514, 13679, 19028, 27358, 33299, 54716, 66598, 95753, 133196, 191506, 383012, 916493, 971209, 1832986, 1942418, 3665972, 3884836, 6415451, 6798463, 12830902, 13596926, 25661804, 27193852, 65071003, 130142006, 260284012, 455497021, 910994042, 1821988084]

約数ペア:

[(1, 1821988084), (2, 910994042), (4, 455497021), (7, 260284012), (14, 130142006), (28, 65071003), (67, 27193852), (71, 25661804), (134, 13596926), (142, 12830902), (268, 6798463), (284, 6415451), (469, 3884836), (497, 3665972), (938, 1942418), (994, 1832986), (1876, 971209), (1988, 916493), (4757, 383012), (9514, 191506), (13679, 133196), (19028, 95753), (27358, 66598), (33299, 54716)]