21917298

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 51932160

約数和(自身を除く): 30014862

約数列:

[1, 2, 3, 6, 13, 19, 23, 26, 38, 39, 46, 57, 69, 78, 114, 138, 247, 299, 437, 494, 598, 643, 741, 874, 897, 1286, 1311, 1482, 1794, 1929, 2622, 3858, 5681, 8359, 11362, 12217, 14789, 16718, 17043, 24434, 25077, 29578, 34086, 36651, 44367, 50154, 73302, 88734, 158821, 192257, 280991, 317642, 384514, 476463, 561982, 576771, 842973, 952926, 1153542, 1685946, 3652883, 7305766, 10958649, 21917298]

約数ペア:

[(1, 21917298), (2, 10958649), (3, 7305766), (6, 3652883), (13, 1685946), (19, 1153542), (23, 952926), (26, 842973), (38, 576771), (39, 561982), (46, 476463), (57, 384514), (69, 317642), (78, 280991), (114, 192257), (138, 158821), (247, 88734), (299, 73302), (437, 50154), (494, 44367), (598, 36651), (643, 34086), (741, 29578), (874, 25077), (897, 24434), (1286, 17043), (1311, 16718), (1482, 14789), (1794, 12217), (1929, 11362), (2622, 8359), (3858, 5681)]