257121537

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 363847680

約数和(自身を除く): 106726143

約数列:

[1, 3, 41, 47, 79, 123, 141, 237, 563, 1689, 1927, 3239, 3713, 5781, 9717, 11139, 23083, 26461, 44477, 69249, 79383, 133431, 152233, 456699, 1084901, 1823557, 2090419, 3254703, 5470671, 6271257, 85707179, 257121537]

約数ペア:

[(1, 257121537), (3, 85707179), (41, 6271257), (47, 5470671), (79, 3254703), (123, 2090419), (141, 1823557), (237, 1084901), (563, 456699), (1689, 152233), (1927, 133431), (3239, 79383), (3713, 69249), (5781, 44477), (9717, 26461), (11139, 23083)]