21685878

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{63409}}^1$

素因数の和:63436

約数の個数: 24

約数和(自身を含む): 49459800

約数和(自身を除く): 27773922

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 63409, 126818, 190227, 380454, 570681, 1141362, 1204771, 2409542, 3614313, 7228626, 10842939, 21685878]

約数ペア:

[(1, 21685878), (2, 10842939), (3, 7228626), (6, 3614313), (9, 2409542), (18, 1204771), (19, 1141362), (38, 570681), (57, 380454), (114, 190227), (171, 126818), (342, 63409)]