80821587

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 143410176

約数和(自身を除く): 62588589

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 121, 187, 231, 357, 363, 561, 847, 1309, 1871, 2057, 2541, 3927, 5613, 6171, 13097, 14399, 20581, 31807, 39291, 43197, 61743, 95421, 144067, 222649, 226391, 349877, 432201, 667947, 679173, 1049631, 1584737, 2449139, 3848647, 4754211, 7347417, 11545941, 26940529, 80821587]

約数ペア:

[(1, 80821587), (3, 26940529), (7, 11545941), (11, 7347417), (17, 4754211), (21, 3848647), (33, 2449139), (51, 1584737), (77, 1049631), (119, 679173), (121, 667947), (187, 432201), (231, 349877), (357, 226391), (363, 222649), (561, 144067), (847, 95421), (1309, 61743), (1871, 43197), (2057, 39291), (2541, 31807), (3927, 20581), (5613, 14399), (6171, 13097)]