20949321

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 30169504

約数和(自身を除く): 9220183

約数列:

[1, 3, 17, 51, 73, 219, 289, 331, 867, 993, 1241, 3723, 5627, 16881, 21097, 24163, 63291, 72489, 95659, 286977, 410771, 1232313, 6983107, 20949321]

約数ペア:

[(1, 20949321), (3, 6983107), (17, 1232313), (51, 410771), (73, 286977), (219, 95659), (289, 72489), (331, 63291), (867, 24163), (993, 21097), (1241, 16881), (3723, 5627)]