21640878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{57251}}^1$

素因数の和:57269

約数の個数: 32

約数和(自身を含む): 54961920

約数和(自身を除く): 33321042

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 57251, 114502, 171753, 343506, 400757, 515259, 801514, 1030518, 1202271, 1545777, 2404542, 3091554, 3606813, 7213626, 10820439, 21640878]

約数ペア:

[(1, 21640878), (2, 10820439), (3, 7213626), (6, 3606813), (7, 3091554), (9, 2404542), (14, 1545777), (18, 1202271), (21, 1030518), (27, 801514), (42, 515259), (54, 400757), (63, 343506), (126, 171753), (189, 114502), (378, 57251)]