2211885

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 4368000

約数和(自身を除く): 2156115

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 199, 247, 285, 585, 597, 741, 855, 995, 1235, 1791, 2223, 2587, 2985, 3705, 3781, 7761, 8955, 11115, 11343, 12935, 18905, 23283, 34029, 38805, 49153, 56715, 116415, 147459, 170145, 245765, 442377, 737295, 2211885]

約数ペア:

[(1, 2211885), (3, 737295), (5, 442377), (9, 245765), (13, 170145), (15, 147459), (19, 116415), (39, 56715), (45, 49153), (57, 38805), (65, 34029), (95, 23283), (117, 18905), (171, 12935), (195, 11343), (199, 11115), (247, 8955), (285, 7761), (585, 3781), (597, 3705), (741, 2985), (855, 2587), (995, 2223), (1235, 1791)]