15405621

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3923}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 27122688

約数和(自身を除く): 11717067

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3923, 3927, 11769, 27461, 43153, 66691, 82383, 129459, 200073, 302071, 466837, 733601, 906213, 1400511, 2200803, 5135207, 15405621]

約数ペア:

[(1, 15405621), (3, 5135207), (7, 2200803), (11, 1400511), (17, 906213), (21, 733601), (33, 466837), (51, 302071), (77, 200073), (119, 129459), (187, 82383), (231, 66691), (357, 43153), (561, 27461), (1309, 11769), (3923, 3927)]