20010826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{1787}}^1$

素因数の和:2309

約数の個数: 16

約数和(自身を含む): 32827680

約数和(自身を除く): 12816854

約数列:

[1, 2, 11, 22, 509, 1018, 1787, 3574, 5599, 11198, 19657, 39314, 909583, 1819166, 10005413, 20010826]

約数ペア:

[(1, 20010826), (2, 10005413), (11, 1819166), (22, 909583), (509, 39314), (1018, 19657), (1787, 11198), (3574, 5599)]