21567990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6719}}^1$

素因数の和:6836

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 30686730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 107, 214, 321, 535, 642, 1070, 1605, 3210, 6719, 13438, 20157, 33595, 40314, 67190, 100785, 201570, 718933, 1437866, 2156799, 3594665, 4313598, 7189330, 10783995, 21567990]

約数ペア:

[(1, 21567990), (2, 10783995), (3, 7189330), (5, 4313598), (6, 3594665), (10, 2156799), (15, 1437866), (30, 718933), (107, 201570), (214, 100785), (321, 67190), (535, 40314), (642, 33595), (1070, 20157), (1605, 13438), (3210, 6719)]