21431577

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8941}}^1$

素因数の和:9008

約数の個数: 16

約数和(自身を含む): 30903552

約数和(自身を除く): 9471975

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8941, 26823, 151997, 420227, 455991, 1260681, 7143859, 21431577]

約数ペア:

[(1, 21431577), (3, 7143859), (17, 1260681), (47, 455991), (51, 420227), (141, 151997), (799, 26823), (2397, 8941)]