21879156970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198901427}}^1$

素因数の和:198901445

約数の個数: 16

約数和(自身を含む): 42962708448

約数和(自身を除く): 21083551478

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198901427, 397802854, 994507135, 1989014270, 2187915697, 4375831394, 10939578485, 21879156970]

約数ペア:

[(1, 21879156970), (2, 10939578485), (5, 4375831394), (10, 2187915697), (11, 1989014270), (22, 994507135), (55, 397802854), (110, 198901427)]