19754805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4003}}^1$

素因数の和:4065

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 17146059

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4003, 4935, 12009, 20015, 28021, 60045, 84063, 140105, 188141, 420315, 564423, 940705, 1316987, 2822115, 3950961, 6584935, 19754805]

約数ペア:

[(1, 19754805), (3, 6584935), (5, 3950961), (7, 2822115), (15, 1316987), (21, 940705), (35, 564423), (47, 420315), (105, 188141), (141, 140105), (235, 84063), (329, 60045), (705, 28021), (987, 20015), (1645, 12009), (4003, 4935)]