51138339

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 81354240

約数和(自身を除く): 30215901

約数列:

[1, 3, 7, 21, 29, 87, 131, 203, 393, 609, 641, 917, 1923, 2751, 3799, 4487, 11397, 13461, 18589, 26593, 55767, 79779, 83971, 130123, 251913, 390369, 587797, 1763391, 2435159, 7305477, 17046113, 51138339]

約数ペア:

[(1, 51138339), (3, 17046113), (7, 7305477), (21, 2435159), (29, 1763391), (87, 587797), (131, 390369), (203, 251913), (393, 130123), (609, 83971), (641, 79779), (917, 55767), (1923, 26593), (2751, 18589), (3799, 13461), (4487, 11397)]