21989968533

素因数分解:

$3^4\times {\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4341

約数の個数: 80

約数和(自身を含む): 36821122800

約数和(自身を除く): 14831154267

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 169, 261, 351, 377, 507, 783, 1053, 1131, 1521, 2197, 2349, 3393, 4261, 4563, 4901, 6591, 10179, 12783, 13689, 14703, 19773, 30537, 38349, 44109, 55393, 59319, 63713, 115047, 123569, 132327, 166179, 177957, 191139, 345141, 370707, 396981, 498537, 573417, 720109, 1112121, 1495611, 1606397, 1720251, 2160327, 3336363, 4486833, 4819191, 5160753, 6480981, 9361417, 10009089, 14457573, 19442943, 20883161, 28084251, 43372719, 58328829, 62649483, 84252753, 130118157, 187948449, 252758259, 271481093, 563845347, 758274777, 814443279, 1691536041, 2443329837, 7329989511, 21989968533]

約数ペア:

[(1, 21989968533), (3, 7329989511), (9, 2443329837), (13, 1691536041), (27, 814443279), (29, 758274777), (39, 563845347), (81, 271481093), (87, 252758259), (117, 187948449), (169, 130118157), (261, 84252753), (351, 62649483), (377, 58328829), (507, 43372719), (783, 28084251), (1053, 20883161), (1131, 19442943), (1521, 14457573), (2197, 10009089), (2349, 9361417), (3393, 6480981), (4261, 5160753), (4563, 4819191), (4901, 4486833), (6591, 3336363), (10179, 2160327), (12783, 1720251), (13689, 1606397), (14703, 1495611), (19773, 1112121), (30537, 720109), (38349, 573417), (44109, 498537), (55393, 396981), (59319, 370707), (63713, 345141), (115047, 191139), (123569, 177957), (132327, 166179)]