21408273

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 11613807

約数列:

[1, 3, 9, 27, 41, 83, 123, 233, 249, 369, 699, 747, 1107, 2097, 2241, 3403, 6291, 9553, 10209, 19339, 28659, 30627, 58017, 85977, 91881, 174051, 257931, 522153, 792899, 2378697, 7136091, 21408273]

約数ペア:

[(1, 21408273), (3, 7136091), (9, 2378697), (27, 792899), (41, 522153), (83, 257931), (123, 174051), (233, 91881), (249, 85977), (369, 58017), (699, 30627), (747, 28659), (1107, 19339), (2097, 10209), (2241, 9553), (3403, 6291)]