21213753

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{733}}^1\times {\mathrm{877}}^1$

素因数の和:1624

約数の個数: 16

約数和(自身を含む): 30933696

約数和(自身を除く): 9719943

約数列:

[1, 3, 11, 33, 733, 877, 2199, 2631, 8063, 9647, 24189, 28941, 642841, 1928523, 7071251, 21213753]

約数ペア:

[(1, 21213753), (3, 7071251), (11, 1928523), (33, 642841), (733, 28941), (877, 24189), (2199, 9647), (2631, 8063)]