81152805909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{203390491}}^1$

素因数の和:203390520

約数の個数: 16

約数和(自身を含む): 130169914880

約数和(自身を除く): 49017108971

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 203390491, 610171473, 1423733437, 3864419329, 4271200311, 11593257987, 27050935303, 81152805909]

約数ペア:

[(1, 81152805909), (3, 27050935303), (7, 11593257987), (19, 4271200311), (21, 3864419329), (57, 1423733437), (133, 610171473), (399, 203390491)]