21156154

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1\times {\mathrm{389}}^1$

素因数の和:845

約数の個数: 16

約数和(自身を含む): 32348160

約数和(自身を除く): 11192006

約数列:

[1, 2, 71, 142, 383, 389, 766, 778, 27193, 27619, 54386, 55238, 148987, 297974, 10578077, 21156154]

約数ペア:

[(1, 21156154), (2, 10578077), (71, 297974), (142, 148987), (383, 55238), (389, 54386), (766, 27619), (778, 27193)]