21051141

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{5171}}^1$

素因数の和:5256

約数の個数: 16

約数和(自身を含む): 29790720

約数和(自身を除く): 8739579

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 5171, 15513, 118933, 305089, 356799, 915267, 7017047, 21051141]

約数ペア:

[(1, 21051141), (3, 7017047), (23, 915267), (59, 356799), (69, 305089), (177, 118933), (1357, 15513), (4071, 5171)]