21497703

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1\times {\mathrm{661}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 29583456

約数和(自身を除く): 8085753

約数列:

[1, 3, 37, 111, 293, 661, 879, 1983, 10841, 24457, 32523, 73371, 193673, 581019, 7165901, 21497703]

約数ペア:

[(1, 21497703), (3, 7165901), (37, 581019), (111, 193673), (293, 73371), (661, 32523), (879, 24457), (1983, 10841)]