81607869

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 143769600

約数和(自身を除く): 62161731

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 79, 133, 171, 237, 399, 553, 711, 863, 1197, 1501, 1659, 2589, 4503, 4977, 6041, 7767, 10507, 13509, 16397, 18123, 31521, 49191, 54369, 68177, 94563, 114779, 147573, 204531, 344337, 477239, 613593, 1033011, 1295363, 1431717, 3886089, 4295151, 9067541, 11658267, 27202623, 81607869]

約数ペア:

[(1, 81607869), (3, 27202623), (7, 11658267), (9, 9067541), (19, 4295151), (21, 3886089), (57, 1431717), (63, 1295363), (79, 1033011), (133, 613593), (171, 477239), (237, 344337), (399, 204531), (553, 147573), (711, 114779), (863, 94563), (1197, 68177), (1501, 54369), (1659, 49191), (2589, 31521), (4503, 18123), (4977, 16397), (6041, 13509), (7767, 10507)]