21041002

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19963}}^1$

素因数の和:20013

約数の個数: 16

約数和(自身を含む): 34497792

約数和(自身を除く): 13456790

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19963, 39926, 339371, 618853, 678742, 1237706, 10520501, 21041002]

約数ペア:

[(1, 21041002), (2, 10520501), (17, 1237706), (31, 678742), (34, 618853), (62, 339371), (527, 39926), (1054, 19963)]