19772885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11597}}^1$

素因数の和:11644

約数の個数: 16

約数和(自身を含む): 26721792

約数和(自身を除く): 6948907

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11597, 57985, 127567, 359507, 637835, 1797535, 3954577, 19772885]

約数ペア:

[(1, 19772885), (5, 3954577), (11, 1797535), (31, 637835), (55, 359507), (155, 127567), (341, 57985), (1705, 11597)]