20814970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11131}}^1$

素因数の和:11166

約数の個数: 32

約数和(自身を含む): 43281216

約数和(自身を除く): 22466246

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 11131, 22262, 55655, 111310, 122441, 189227, 244882, 378454, 612205, 946135, 1224410, 1892270, 2081497, 4162994, 10407485, 20814970]

約数ペア:

[(1, 20814970), (2, 10407485), (5, 4162994), (10, 2081497), (11, 1892270), (17, 1224410), (22, 946135), (34, 612205), (55, 378454), (85, 244882), (110, 189227), (170, 122441), (187, 111310), (374, 55655), (935, 22262), (1870, 11131)]