21115042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42743}}^1$

素因数の和:42777

約数の個数: 16

約数和(自身を含む): 35904960

約数和(自身を除く): 14789918

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 42743, 85486, 555659, 812117, 1111318, 1624234, 10557521, 21115042]

約数ペア:

[(1, 21115042), (2, 10557521), (13, 1624234), (19, 1111318), (26, 812117), (38, 555659), (247, 85486), (494, 42743)]