21003393

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{7079}}^1$

素因数の和:7148

約数の個数: 16

約数和(自身を含む): 29905920

約数和(自身を除く): 8902527

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 7079, 21237, 162817, 304397, 488451, 913191, 7001131, 21003393]

約数ペア:

[(1, 21003393), (3, 7001131), (23, 913191), (43, 488451), (69, 304397), (129, 162817), (989, 21237), (2967, 7079)]