21475662

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 49969920

約数和(自身を除く): 28494258

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 43, 57, 78, 86, 114, 129, 247, 258, 337, 494, 559, 674, 741, 817, 1011, 1118, 1482, 1634, 1677, 2022, 2451, 3354, 4381, 4902, 6403, 8762, 10621, 12806, 13143, 14491, 19209, 21242, 26286, 28982, 31863, 38418, 43473, 63726, 83239, 86946, 166478, 188383, 249717, 275329, 376766, 499434, 550658, 565149, 825987, 1130298, 1651974, 3579277, 7158554, 10737831, 21475662]

約数ペア:

[(1, 21475662), (2, 10737831), (3, 7158554), (6, 3579277), (13, 1651974), (19, 1130298), (26, 825987), (38, 565149), (39, 550658), (43, 499434), (57, 376766), (78, 275329), (86, 249717), (114, 188383), (129, 166478), (247, 86946), (258, 83239), (337, 63726), (494, 43473), (559, 38418), (674, 31863), (741, 28982), (817, 26286), (1011, 21242), (1118, 19209), (1482, 14491), (1634, 13143), (1677, 12806), (2022, 10621), (2451, 8762), (3354, 6403), (4381, 4902)]