7874874

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 20321280

約数和(自身を除く): 12446406

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 83, 126, 166, 189, 249, 251, 378, 498, 502, 581, 747, 753, 1162, 1494, 1506, 1743, 1757, 2241, 2259, 3486, 3514, 4482, 4518, 5229, 5271, 6777, 10458, 10542, 13554, 15687, 15813, 20833, 31374, 31626, 41666, 47439, 62499, 94878, 124998, 145831, 187497, 291662, 374994, 437493, 562491, 874986, 1124982, 1312479, 2624958, 3937437, 7874874]

約数ペア:

[(1, 7874874), (2, 3937437), (3, 2624958), (6, 1312479), (7, 1124982), (9, 874986), (14, 562491), (18, 437493), (21, 374994), (27, 291662), (42, 187497), (54, 145831), (63, 124998), (83, 94878), (126, 62499), (166, 47439), (189, 41666), (249, 31626), (251, 31374), (378, 20833), (498, 15813), (502, 15687), (581, 13554), (747, 10542), (753, 10458), (1162, 6777), (1494, 5271), (1506, 5229), (1743, 4518), (1757, 4482), (2241, 3514), (2259, 3486)]