19875771

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3511}}^1$

素因数の和:3571

約数の個数: 24

約数和(自身を含む): 31228704

約数和(自身を除く): 11352933

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3511, 5661, 10533, 31599, 59687, 129907, 179061, 389721, 537183, 1169163, 2208419, 6625257, 19875771]

約数ペア:

[(1, 19875771), (3, 6625257), (9, 2208419), (17, 1169163), (37, 537183), (51, 389721), (111, 179061), (153, 129907), (333, 59687), (629, 31599), (1887, 10533), (3511, 5661)]