21305076

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3331}}^1$

素因数の和:3392

約数の個数: 48

約数和(自身を含む): 54858048

約数和(自身を除く): 33552972

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3198, 3331, 6396, 6662, 9993, 13324, 19986, 39972, 43303, 86606, 129909, 136571, 173212, 259818, 273142, 409713, 519636, 546284, 819426, 1638852, 1775423, 3550846, 5326269, 7101692, 10652538, 21305076]

約数ペア:

[(1, 21305076), (2, 10652538), (3, 7101692), (4, 5326269), (6, 3550846), (12, 1775423), (13, 1638852), (26, 819426), (39, 546284), (41, 519636), (52, 409713), (78, 273142), (82, 259818), (123, 173212), (156, 136571), (164, 129909), (246, 86606), (492, 43303), (533, 39972), (1066, 19986), (1599, 13324), (2132, 9993), (3198, 6662), (3331, 6396)]