28997661

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 49904640

約数和(自身を除く): 20906979

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 79, 147, 227, 231, 237, 539, 553, 681, 869, 1589, 1617, 1659, 2497, 2607, 3871, 4767, 6083, 7491, 11123, 11613, 17479, 17933, 18249, 33369, 42581, 52437, 53799, 122353, 125531, 127743, 197263, 367059, 376593, 591789, 878717, 1380841, 2636151, 4142523, 9665887, 28997661]

約数ペア:

[(1, 28997661), (3, 9665887), (7, 4142523), (11, 2636151), (21, 1380841), (33, 878717), (49, 591789), (77, 376593), (79, 367059), (147, 197263), (227, 127743), (231, 125531), (237, 122353), (539, 53799), (553, 52437), (681, 42581), (869, 33369), (1589, 18249), (1617, 17933), (1659, 17479), (2497, 11613), (2607, 11123), (3871, 7491), (4767, 6083)]