20151208749

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{77081}}^1$

素因数の和:77361

約数の個数: 32

約数和(自身を含む): 31375457280

約数和(自身を除く): 11224248531

約数列:

[1, 3, 7, 21, 59, 177, 211, 413, 633, 1239, 1477, 4431, 12449, 37347, 77081, 87143, 231243, 261429, 539567, 1618701, 4547779, 13643337, 16264091, 31834453, 48792273, 95503359, 113848637, 341545911, 959581369, 2878744107, 6717069583, 20151208749]

約数ペア:

[(1, 20151208749), (3, 6717069583), (7, 2878744107), (21, 959581369), (59, 341545911), (177, 113848637), (211, 95503359), (413, 48792273), (633, 31834453), (1239, 16264091), (1477, 13643337), (4431, 4547779), (12449, 1618701), (37347, 539567), (77081, 261429), (87143, 231243)]