20938565529

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1273403}}^1$

素因数の和:1273451

約数の個数: 40

約数和(自身を含む): 36979652160

約数和(自身を除く): 16041086631

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1827, 2349, 5481, 16443, 1273403, 3820209, 8913821, 11460627, 26741463, 34381881, 36928687, 80224389, 103145643, 110786061, 240673167, 258500809, 332358183, 722019501, 775502427, 997074549, 2326507281, 2991223647, 6979521843, 20938565529]

約数ペア:

[(1, 20938565529), (3, 6979521843), (7, 2991223647), (9, 2326507281), (21, 997074549), (27, 775502427), (29, 722019501), (63, 332358183), (81, 258500809), (87, 240673167), (189, 110786061), (203, 103145643), (261, 80224389), (567, 36928687), (609, 34381881), (783, 26741463), (1827, 11460627), (2349, 8913821), (5481, 3820209), (16443, 1273403)]