21167976956

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1\times {\mathrm{16139}}^1$

素因数の和:16626

約数の個数: 48

約数和(自身を含む): 42769708800

約数和(自身を除く): 21601731844

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 337, 556, 674, 973, 1348, 1946, 2359, 3892, 4718, 9436, 16139, 32278, 46843, 64556, 93686, 112973, 187372, 225946, 327901, 451892, 655802, 1311604, 2243321, 4486642, 5438843, 8973284, 10877686, 15703247, 21755372, 31406494, 38071901, 62812988, 76143802, 152287604, 755999177, 1511998354, 3023996708, 5291994239, 10583988478, 21167976956]

約数ペア:

[(1, 21167976956), (2, 10583988478), (4, 5291994239), (7, 3023996708), (14, 1511998354), (28, 755999177), (139, 152287604), (278, 76143802), (337, 62812988), (556, 38071901), (674, 31406494), (973, 21755372), (1348, 15703247), (1946, 10877686), (2359, 8973284), (3892, 5438843), (4718, 4486642), (9436, 2243321), (16139, 1311604), (32278, 655802), (46843, 451892), (64556, 327901), (93686, 225946), (112973, 187372)]