21039974838

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1471}}^1\times {\mathrm{19381}}^1$

素因数の和:20901

約数の個数: 48

約数和(自身を含む): 46732637952

約数和(自身を除く): 25692663114

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 1471, 2942, 4413, 8826, 13239, 19381, 26478, 38762, 58143, 60311, 116286, 120622, 174429, 180933, 348858, 361866, 542799, 794621, 1085598, 1589242, 2383863, 4767726, 7151589, 14303178, 28509451, 57018902, 85528353, 171056706, 256585059, 513170118, 1168887491, 2337774982, 3506662473, 7013324946, 10519987419, 21039974838]

約数ペア:

[(1, 21039974838), (2, 10519987419), (3, 7013324946), (6, 3506662473), (9, 2337774982), (18, 1168887491), (41, 513170118), (82, 256585059), (123, 171056706), (246, 85528353), (369, 57018902), (738, 28509451), (1471, 14303178), (2942, 7151589), (4413, 4767726), (8826, 2383863), (13239, 1589242), (19381, 1085598), (26478, 794621), (38762, 542799), (58143, 361866), (60311, 348858), (116286, 180933), (120622, 174429)]