19916655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6353}}^1$

素因数の和:6391

約数の個数: 32

約数和(自身を含む): 36599040

約数和(自身を除く): 16682385

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6353, 19059, 31765, 69883, 95295, 120707, 209649, 349415, 362121, 603535, 1048245, 1327777, 1810605, 3983331, 6638885, 19916655]

約数ペア:

[(1, 19916655), (3, 6638885), (5, 3983331), (11, 1810605), (15, 1327777), (19, 1048245), (33, 603535), (55, 362121), (57, 349415), (95, 209649), (165, 120707), (209, 95295), (285, 69883), (627, 31765), (1045, 19059), (3135, 6353)]