261535534911

素因数分解:

$3^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1\times {\mathrm{19387}}^1$

素因数の和:20061

約数の個数: 64

約数和(自身を含む): 446922869760

約数和(自身を除く): 185387334849

約数列:

[1, 3, 7, 9, 21, 27, 63, 137, 189, 411, 521, 959, 1233, 1563, 2877, 3647, 3699, 4689, 8631, 10941, 14067, 19387, 25893, 32823, 58161, 71377, 98469, 135709, 174483, 214131, 407127, 499639, 523449, 642393, 1221381, 1498917, 1927179, 2656019, 3664143, 4496751, 7968057, 10100627, 13490253, 18592133, 23904171, 30301881, 55776399, 70704389, 71712513, 90905643, 167329197, 212113167, 272716929, 501987591, 636339501, 1383785899, 1909018503, 4151357697, 9686501293, 12454073091, 29059503879, 37362219273, 87178511637, 261535534911]

約数ペア:

[(1, 261535534911), (3, 87178511637), (7, 37362219273), (9, 29059503879), (21, 12454073091), (27, 9686501293), (63, 4151357697), (137, 1909018503), (189, 1383785899), (411, 636339501), (521, 501987591), (959, 272716929), (1233, 212113167), (1563, 167329197), (2877, 90905643), (3647, 71712513), (3699, 70704389), (4689, 55776399), (8631, 30301881), (10941, 23904171), (14067, 18592133), (19387, 13490253), (25893, 10100627), (32823, 7968057), (58161, 4496751), (71377, 3664143), (98469, 2656019), (135709, 1927179), (174483, 1498917), (214131, 1221381), (407127, 642393), (499639, 523449)]