28421618841

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{1297}}^1$

素因数の和:1731

約数の個数: 96

約数和(自身を含む): 51888764928

約数和(自身を除く): 23467146087

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 103, 231, 307, 309, 693, 721, 921, 927, 1133, 1297, 2149, 2163, 2763, 3377, 3399, 3891, 6447, 6489, 7931, 9079, 10131, 10197, 11673, 14267, 19341, 23639, 23793, 27237, 30393, 31621, 42801, 70917, 71379, 81711, 94863, 99869, 128403, 133591, 212751, 221347, 284589, 299607, 347831, 398179, 400773, 664041, 898821, 935137, 1043493, 1194537, 1202319, 1469501, 1992123, 2434817, 2787253, 2805411, 3130479, 3583611, 4379969, 4408503, 7304451, 8361759, 8416233, 10286507, 13139907, 13225509, 21913353, 25085277, 30659783, 30859521, 39419721, 41012437, 91979349, 92578563, 123037311, 275938047, 287087059, 369111933, 451136807, 861261177, 1353410421, 2583783531, 3157957649, 4060231263, 9473872947, 28421618841]

約数ペア:

[(1, 28421618841), (3, 9473872947), (7, 4060231263), (9, 3157957649), (11, 2583783531), (21, 1353410421), (33, 861261177), (63, 451136807), (77, 369111933), (99, 287087059), (103, 275938047), (231, 123037311), (307, 92578563), (309, 91979349), (693, 41012437), (721, 39419721), (921, 30859521), (927, 30659783), (1133, 25085277), (1297, 21913353), (2149, 13225509), (2163, 13139907), (2763, 10286507), (3377, 8416233), (3399, 8361759), (3891, 7304451), (6447, 4408503), (6489, 4379969), (7931, 3583611), (9079, 3130479), (10131, 2805411), (10197, 2787253), (11673, 2434817), (14267, 1992123), (19341, 1469501), (23639, 1202319), (23793, 1194537), (27237, 1043493), (30393, 935137), (31621, 898821), (42801, 664041), (70917, 400773), (71379, 398179), (81711, 347831), (94863, 299607), (99869, 284589), (128403, 221347), (133591, 212751)]