21409164

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28319}}^1$

素因数の和:28339

約数の個数: 48

約数和(自身を含む): 63436800

約数和(自身を除く): 42027636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28319, 56638, 84957, 113276, 169914, 198233, 254871, 339828, 396466, 509742, 594699, 764613, 792932, 1019484, 1189398, 1529226, 1784097, 2378796, 3058452, 3568194, 5352291, 7136388, 10704582, 21409164]

約数ペア:

[(1, 21409164), (2, 10704582), (3, 7136388), (4, 5352291), (6, 3568194), (7, 3058452), (9, 2378796), (12, 1784097), (14, 1529226), (18, 1189398), (21, 1019484), (27, 792932), (28, 764613), (36, 594699), (42, 509742), (54, 396466), (63, 339828), (84, 254871), (108, 198233), (126, 169914), (189, 113276), (252, 84957), (378, 56638), (756, 28319)]