20051109

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{593}}^1$

素因数の和:646

約数の個数: 36

約数和(自身を含む): 33189156

約数和(自身を除く): 13138047

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 289, 593, 663, 867, 1779, 1989, 2601, 3757, 5337, 7709, 10081, 11271, 23127, 30243, 33813, 69381, 90729, 131053, 171377, 393159, 514131, 1179477, 1542393, 2227901, 6683703, 20051109]

約数ペア:

[(1, 20051109), (3, 6683703), (9, 2227901), (13, 1542393), (17, 1179477), (39, 514131), (51, 393159), (117, 171377), (153, 131053), (221, 90729), (289, 69381), (593, 33813), (663, 30243), (867, 23127), (1779, 11271), (1989, 10081), (2601, 7709), (3757, 5337)]