87278709

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{607}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 137281536

約数和(自身を除く): 50002827

約数列:

[1, 3, 7, 21, 41, 123, 167, 287, 501, 607, 861, 1169, 1821, 3507, 4249, 6847, 12747, 20541, 24887, 47929, 74661, 101369, 143787, 174209, 304107, 522627, 709583, 2128749, 4156129, 12468387, 29092903, 87278709]

約数ペア:

[(1, 87278709), (3, 29092903), (7, 12468387), (21, 4156129), (41, 2128749), (123, 709583), (167, 522627), (287, 304107), (501, 174209), (607, 143787), (861, 101369), (1169, 74661), (1821, 47929), (3507, 24887), (4249, 20541), (6847, 12747)]