21819279

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{2473}}^1$

素因数の和:2666

約数の個数: 16

約数和(自身を含む): 30994272

約数和(自身を除く): 9174993

約数列:

[1, 3, 17, 51, 173, 519, 2473, 2941, 7419, 8823, 42041, 126123, 427829, 1283487, 7273093, 21819279]

約数ペア:

[(1, 21819279), (3, 7273093), (17, 1283487), (51, 427829), (173, 126123), (519, 42041), (2473, 8823), (2941, 7419)]