7940976561

素因数分解:

$3^3\times 7^1\times {\mathrm{42015749}}^1$

素因数の和:42015765

約数の個数: 16

約数和(自身を含む): 13445040000

約数和(自身を除く): 5504063439

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 42015749, 126047247, 294110243, 378141741, 882330729, 1134425223, 2646992187, 7940976561]

約数ペア:

[(1, 7940976561), (3, 2646992187), (7, 1134425223), (9, 882330729), (21, 378141741), (27, 294110243), (63, 126047247), (189, 42015749)]