21620984

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{35099}}^1$

素因数の和:35123

約数の個数: 32

約数和(自身を含む): 50544000

約数和(自身を除く): 28923016

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 35099, 70198, 140396, 245693, 280792, 386089, 491386, 772178, 982772, 1544356, 1965544, 2702623, 3088712, 5405246, 10810492, 21620984]

約数ペア:

[(1, 21620984), (2, 10810492), (4, 5405246), (7, 3088712), (8, 2702623), (11, 1965544), (14, 1544356), (22, 982772), (28, 772178), (44, 491386), (56, 386089), (77, 280792), (88, 245693), (154, 140396), (308, 70198), (616, 35099)]