28091487

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 40488448

約数和(自身を除く): 12396961

約数列:

[1, 3, 23, 31, 69, 93, 529, 571, 713, 1587, 1713, 2139, 13133, 16399, 17701, 39399, 49197, 53103, 302059, 407123, 906177, 1221369, 9363829, 28091487]

約数ペア:

[(1, 28091487), (3, 9363829), (23, 1221369), (31, 906177), (69, 407123), (93, 302059), (529, 53103), (571, 49197), (713, 39399), (1587, 17701), (1713, 16399), (2139, 13133)]