81796809

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 121616640

約数和(自身を除く): 39819831

約数列:

[1, 3, 17, 23, 51, 69, 137, 391, 411, 509, 1173, 1527, 2329, 3151, 6987, 8653, 9453, 11707, 25959, 35121, 53567, 69733, 160701, 199019, 209199, 597057, 1185461, 1603859, 3556383, 4811577, 27265603, 81796809]

約数ペア:

[(1, 81796809), (3, 27265603), (17, 4811577), (23, 3556383), (51, 1603859), (69, 1185461), (137, 597057), (391, 209199), (411, 199019), (509, 160701), (1173, 69733), (1527, 53567), (2329, 35121), (3151, 25959), (6987, 11707), (8653, 9453)]