21126712

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17489}}^1$

素因数の和:17646

約数の個数: 16

約数和(自身を含む): 39877200

約数和(自身を除く): 18750488

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17489, 34978, 69956, 139912, 2640839, 5281678, 10563356, 21126712]

約数ペア:

[(1, 21126712), (2, 10563356), (4, 5281678), (8, 2640839), (151, 139912), (302, 69956), (604, 34978), (1208, 17489)]