21634978

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{1009}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 33160320

約数和(自身を除く): 11525342

約数列:

[1, 2, 71, 142, 151, 302, 1009, 2018, 10721, 21442, 71639, 143278, 152359, 304718, 10817489, 21634978]

約数ペア:

[(1, 21634978), (2, 10817489), (71, 304718), (142, 152359), (151, 143278), (302, 71639), (1009, 21442), (2018, 10721)]