18876938

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:853

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 10049782

約数列:

[1, 2, 61, 122, 359, 431, 718, 862, 21899, 26291, 43798, 52582, 154729, 309458, 9438469, 18876938]

約数ペア:

[(1, 18876938), (2, 9438469), (61, 309458), (122, 154729), (359, 52582), (431, 43798), (718, 26291), (862, 21899)]