21115691109

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{138011053}}^1$

素因数の和:138011076

約数の個数: 12

約数和(自身を含む): 32294586636

約数和(自身を除く): 11178895527

約数列:

[1, 3, 9, 17, 51, 153, 138011053, 414033159, 1242099477, 2346187901, 7038563703, 21115691109]

約数ペア:

[(1, 21115691109), (3, 7038563703), (9, 2346187901), (17, 1242099477), (51, 414033159), (153, 138011053)]