209092015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{88411}}^1$

素因数の和:88470

約数の個数: 16

約数和(自身を含む): 280089216

約数和(自身を除く): 70997201

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 88411, 442055, 972521, 3801673, 4862605, 19008365, 41818403, 209092015]

約数ペア:

[(1, 209092015), (5, 41818403), (11, 19008365), (43, 4862605), (55, 3801673), (215, 972521), (473, 442055), (2365, 88411)]