20508724341

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{26357}}^1$

素因数の和:26575

約数の個数: 64

約数和(自身を含む): 36437299200

約数和(自身を除く): 15928574859

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 179, 189, 207, 483, 537, 621, 1253, 1449, 1611, 3759, 4117, 4347, 4833, 11277, 12351, 26357, 28819, 33831, 37053, 79071, 86457, 111159, 184499, 237213, 259371, 553497, 606211, 711639, 778113, 1660491, 1818633, 4243477, 4717903, 4981473, 5455899, 12730431, 14153709, 16367697, 33025321, 38191293, 42461127, 99075963, 108511769, 114573879, 127383381, 297227889, 325535307, 759582383, 891683667, 976605921, 2278747149, 2929817763, 6836241447, 20508724341]

約数ペア:

[(1, 20508724341), (3, 6836241447), (7, 2929817763), (9, 2278747149), (21, 976605921), (23, 891683667), (27, 759582383), (63, 325535307), (69, 297227889), (161, 127383381), (179, 114573879), (189, 108511769), (207, 99075963), (483, 42461127), (537, 38191293), (621, 33025321), (1253, 16367697), (1449, 14153709), (1611, 12730431), (3759, 5455899), (4117, 4981473), (4347, 4717903), (4833, 4243477), (11277, 1818633), (12351, 1660491), (26357, 778113), (28819, 711639), (33831, 606211), (37053, 553497), (79071, 259371), (86457, 237213), (111159, 184499)]