31181689

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 12255047

約数列:

[1, 7, 11, 17, 41, 49, 77, 83, 119, 187, 287, 451, 539, 581, 697, 833, 913, 1309, 1411, 2009, 3157, 3403, 4067, 4879, 6391, 7667, 9163, 9877, 15521, 22099, 23821, 34153, 37433, 44737, 53669, 57851, 69139, 108647, 166747, 262031, 375683, 404957, 636361, 760529, 1834217, 2834699, 4454527, 31181689]

約数ペア:

[(1, 31181689), (7, 4454527), (11, 2834699), (17, 1834217), (41, 760529), (49, 636361), (77, 404957), (83, 375683), (119, 262031), (187, 166747), (287, 108647), (451, 69139), (539, 57851), (581, 53669), (697, 44737), (833, 37433), (913, 34153), (1309, 23821), (1411, 22099), (2009, 15521), (3157, 9877), (3403, 9163), (4067, 7667), (4879, 6391)]