25251057

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 42602560

約数和(自身を除く): 17351503

約数列:

[1, 3, 9, 13, 19, 37, 39, 57, 111, 117, 171, 247, 307, 333, 481, 703, 741, 921, 1443, 2109, 2223, 2763, 3991, 4329, 5833, 6327, 9139, 11359, 11973, 17499, 27417, 34077, 35919, 52497, 75829, 82251, 102231, 147667, 215821, 227487, 443001, 647463, 682461, 1329003, 1942389, 2805673, 8417019, 25251057]

約数ペア:

[(1, 25251057), (3, 8417019), (9, 2805673), (13, 1942389), (19, 1329003), (37, 682461), (39, 647463), (57, 443001), (111, 227487), (117, 215821), (171, 147667), (247, 102231), (307, 82251), (333, 75829), (481, 52497), (703, 35919), (741, 34077), (921, 27417), (1443, 17499), (2109, 11973), (2223, 11359), (2763, 9139), (3991, 6327), (4329, 5833)]