21321344

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:841

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 27516256

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 209, 304, 352, 418, 608, 704, 797, 836, 1216, 1408, 1594, 1672, 2432, 3188, 3344, 6376, 6688, 8767, 12752, 13376, 15143, 17534, 25504, 26752, 30286, 35068, 51008, 60572, 70136, 102016, 121144, 140272, 166573, 242288, 280544, 333146, 484576, 561088, 666292, 969152, 1122176, 1332584, 1938304, 2665168, 5330336, 10660672, 21321344]

約数ペア:

[(1, 21321344), (2, 10660672), (4, 5330336), (8, 2665168), (11, 1938304), (16, 1332584), (19, 1122176), (22, 969152), (32, 666292), (38, 561088), (44, 484576), (64, 333146), (76, 280544), (88, 242288), (128, 166573), (152, 140272), (176, 121144), (209, 102016), (304, 70136), (352, 60572), (418, 51008), (608, 35068), (704, 30286), (797, 26752), (836, 25504), (1216, 17534), (1408, 15143), (1594, 13376), (1672, 12752), (2432, 8767), (3188, 6688), (3344, 6376)]