21057866

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19979}}^1$

素因数の和:20029

約数の個数: 16

約数和(自身を含む): 34525440

約数和(自身を除く): 13467574

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19979, 39958, 339643, 619349, 679286, 1238698, 10528933, 21057866]

約数ペア:

[(1, 21057866), (2, 10528933), (17, 1238698), (31, 679286), (34, 619349), (62, 339643), (527, 39958), (1054, 19979)]