20444739

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12387261

約数列:

[1, 3, 7, 21, 29, 59, 87, 177, 203, 413, 569, 609, 1239, 1707, 1711, 3983, 5133, 11949, 11977, 16501, 33571, 35931, 49503, 100713, 115507, 234997, 346521, 704991, 973559, 2920677, 6814913, 20444739]

約数ペア:

[(1, 20444739), (3, 6814913), (7, 2920677), (21, 973559), (29, 704991), (59, 346521), (87, 234997), (177, 115507), (203, 100713), (413, 49503), (569, 35931), (609, 33571), (1239, 16501), (1707, 11977), (1711, 11949), (3983, 5133)]