21688428

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{29629}}^1$

素因数の和:29697

約数の個数: 24

約数和(自身を含む): 51437680

約数和(自身を除く): 29749252

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 732, 29629, 59258, 88887, 118516, 177774, 355548, 1807369, 3614738, 5422107, 7229476, 10844214, 21688428]

約数ペア:

[(1, 21688428), (2, 10844214), (3, 7229476), (4, 5422107), (6, 3614738), (12, 1807369), (61, 355548), (122, 177774), (183, 118516), (244, 88887), (366, 59258), (732, 29629)]