21707139856

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{647}}^1\times {\mathrm{72307}}^1$

素因数の和:72991

約数の個数: 40

約数和(自身を含む): 43575693120

約数和(自身を除く): 21868553264

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 647, 1294, 2588, 5176, 10352, 18763, 37526, 72307, 75052, 144614, 150104, 289228, 300208, 578456, 1156912, 2096903, 4193806, 8387612, 16775224, 33550448, 46782629, 93565258, 187130516, 374261032, 748522064, 1356696241, 2713392482, 5426784964, 10853569928, 21707139856]

約数ペア:

[(1, 21707139856), (2, 10853569928), (4, 5426784964), (8, 2713392482), (16, 1356696241), (29, 748522064), (58, 374261032), (116, 187130516), (232, 93565258), (464, 46782629), (647, 33550448), (1294, 16775224), (2588, 8387612), (5176, 4193806), (10352, 2096903), (18763, 1156912), (37526, 578456), (72307, 300208), (75052, 289228), (144614, 150104)]