21097277

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:356

約数の個数: 16

約数和(自身を含む): 22915200

約数和(自身を除く): 1817923

約数列:

[1, 19, 61, 109, 167, 1159, 2071, 3173, 6649, 10187, 18203, 126331, 193553, 345857, 1110383, 21097277]

約数ペア:

[(1, 21097277), (19, 1110383), (61, 345857), (109, 193553), (167, 126331), (1159, 18203), (2071, 10187), (3173, 6649)]