1997179965

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{212353}}^1$

素因数の和:212394

約数の個数: 48

約数和(自身を含む): 3975266880

約数和(自身を除く): 1978086915

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 3135, 9405, 212353, 637059, 1061765, 1911177, 2335883, 3185295, 4034707, 7007649, 9555885, 11679415, 12104121, 20173535, 21022947, 35038245, 36312363, 44381777, 60520605, 105114735, 133145331, 181561815, 221908885, 399435993, 665726655, 1997179965]

約数ペア:

[(1, 1997179965), (3, 665726655), (5, 399435993), (9, 221908885), (11, 181561815), (15, 133145331), (19, 105114735), (33, 60520605), (45, 44381777), (55, 36312363), (57, 35038245), (95, 21022947), (99, 20173535), (165, 12104121), (171, 11679415), (209, 9555885), (285, 7007649), (495, 4034707), (627, 3185295), (855, 2335883), (1045, 1911177), (1881, 1061765), (3135, 637059), (9405, 212353)]