391735521

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{769}}^1$

素因数の和:1131

約数の個数: 40

約数和(自身を含む): 618648800

約数和(自身を除く): 226913279

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 331, 513, 769, 993, 1539, 2307, 2979, 6289, 6921, 8937, 14611, 18867, 20763, 26811, 43833, 56601, 62289, 131499, 169803, 254539, 394497, 509409, 763617, 1183491, 2290851, 4836241, 6872553, 14508723, 20617659, 43526169, 130578507, 391735521]

約数ペア:

[(1, 391735521), (3, 130578507), (9, 43526169), (19, 20617659), (27, 14508723), (57, 6872553), (81, 4836241), (171, 2290851), (331, 1183491), (513, 763617), (769, 509409), (993, 394497), (1539, 254539), (2307, 169803), (2979, 131499), (6289, 62289), (6921, 56601), (8937, 43833), (14611, 26811), (18867, 20763)]