21840038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9829}}^1$

素因数の和:9943

約数の個数: 16

約数和(自身を含む): 36095760

約数和(自身を除く): 14255722

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9829, 19658, 108119, 216238, 992729, 1985458, 10920019, 21840038]

約数ペア:

[(1, 21840038), (2, 10920019), (11, 1985458), (22, 992729), (101, 216238), (202, 108119), (1111, 19658), (2222, 9829)]