258835479

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1\times {\mathrm{449}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 400780800

約数和(自身を除く): 141945321

約数列:

[1, 3, 7, 21, 97, 283, 291, 449, 679, 849, 1347, 1981, 2037, 3143, 5943, 9429, 27451, 43553, 82353, 127067, 130659, 192157, 304871, 381201, 576471, 889469, 914613, 2668407, 12325499, 36976497, 86278493, 258835479]

約数ペア:

[(1, 258835479), (3, 86278493), (7, 36976497), (21, 12325499), (97, 2668407), (283, 914613), (291, 889469), (449, 576471), (679, 381201), (849, 304871), (1347, 192157), (1981, 130659), (2037, 127067), (3143, 82353), (5943, 43553), (9429, 27451)]