81256539

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{12941}}^1$

素因数の和:12987

約数の個数: 32

約数和(自身を含む): 139152384

約数和(自身を除く): 57895845

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 6279, 12941, 38823, 90587, 168233, 271761, 297643, 504699, 892929, 1177631, 2083501, 3532893, 3869359, 6250503, 11608077, 27085513, 81256539]

約数ペア:

[(1, 81256539), (3, 27085513), (7, 11608077), (13, 6250503), (21, 3869359), (23, 3532893), (39, 2083501), (69, 1177631), (91, 892929), (161, 504699), (273, 297643), (299, 271761), (483, 168233), (897, 90587), (2093, 38823), (6279, 12941)]