21346728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 61048800

約数和(自身を除く): 39702072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 169, 228, 247, 277, 312, 338, 456, 494, 507, 554, 676, 741, 831, 988, 1014, 1108, 1352, 1482, 1662, 1976, 2028, 2216, 2964, 3211, 3324, 3601, 4056, 5263, 5928, 6422, 6648, 7202, 9633, 10526, 10803, 12844, 14404, 15789, 19266, 21052, 21606, 25688, 28808, 31578, 38532, 42104, 43212, 46813, 63156, 68419, 77064, 86424, 93626, 126312, 136838, 140439, 187252, 205257, 273676, 280878, 374504, 410514, 547352, 561756, 821028, 889447, 1123512, 1642056, 1778894, 2668341, 3557788, 5336682, 7115576, 10673364, 21346728]

約数ペア:

[(1, 21346728), (2, 10673364), (3, 7115576), (4, 5336682), (6, 3557788), (8, 2668341), (12, 1778894), (13, 1642056), (19, 1123512), (24, 889447), (26, 821028), (38, 561756), (39, 547352), (52, 410514), (57, 374504), (76, 280878), (78, 273676), (104, 205257), (114, 187252), (152, 140439), (156, 136838), (169, 126312), (228, 93626), (247, 86424), (277, 77064), (312, 68419), (338, 63156), (456, 46813), (494, 43212), (507, 42104), (554, 38532), (676, 31578), (741, 28808), (831, 25688), (988, 21606), (1014, 21052), (1108, 19266), (1352, 15789), (1482, 14404), (1662, 12844), (1976, 10803), (2028, 10526), (2216, 9633), (2964, 7202), (3211, 6648), (3324, 6422), (3601, 5928), (4056, 5263)]