31312323

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 57442320

約数和(自身を除く): 26129997

約数列:

[1, 3, 7, 9, 19, 21, 37, 49, 57, 63, 101, 111, 133, 147, 171, 259, 303, 333, 399, 441, 703, 707, 777, 909, 931, 1197, 1813, 1919, 2109, 2121, 2331, 2793, 3737, 4921, 4949, 5439, 5757, 6327, 6363, 8379, 11211, 13433, 14763, 14847, 16317, 17271, 26159, 33633, 34447, 40299, 44289, 44541, 71003, 78477, 94031, 103341, 120897, 183113, 213009, 235431, 282093, 310023, 497021, 549339, 639027, 846279, 1491063, 1648017, 3479147, 4473189, 10437441, 31312323]

約数ペア:

[(1, 31312323), (3, 10437441), (7, 4473189), (9, 3479147), (19, 1648017), (21, 1491063), (37, 846279), (49, 639027), (57, 549339), (63, 497021), (101, 310023), (111, 282093), (133, 235431), (147, 213009), (171, 183113), (259, 120897), (303, 103341), (333, 94031), (399, 78477), (441, 71003), (703, 44541), (707, 44289), (777, 40299), (909, 34447), (931, 33633), (1197, 26159), (1813, 17271), (1919, 16317), (2109, 14847), (2121, 14763), (2331, 13433), (2793, 11211), (3737, 8379), (4921, 6363), (4949, 6327), (5439, 5757)]