21119769

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{557}}^1$

素因数の和:957

約数の個数: 24

約数和(自身を含む): 33426432

約数和(自身を除く): 12306663

約数列:

[1, 3, 9, 11, 33, 99, 383, 557, 1149, 1671, 3447, 4213, 5013, 6127, 12639, 18381, 37917, 55143, 213331, 639993, 1919979, 2346641, 7039923, 21119769]

約数ペア:

[(1, 21119769), (3, 7039923), (9, 2346641), (11, 1919979), (33, 639993), (99, 213331), (383, 55143), (557, 37917), (1149, 18381), (1671, 12639), (3447, 6127), (4213, 5013)]