19280205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 38648064

約数和(自身を除く): 19367859

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 631, 679, 873, 1455, 1893, 2037, 3155, 3395, 4365, 4417, 5679, 6111, 9465, 10185, 13251, 22085, 28395, 30555, 39753, 61207, 66255, 183621, 198765, 306035, 428449, 550863, 918105, 1285347, 2142245, 2754315, 3856041, 6426735, 19280205]

約数ペア:

[(1, 19280205), (3, 6426735), (5, 3856041), (7, 2754315), (9, 2142245), (15, 1285347), (21, 918105), (35, 550863), (45, 428449), (63, 306035), (97, 198765), (105, 183621), (291, 66255), (315, 61207), (485, 39753), (631, 30555), (679, 28395), (873, 22085), (1455, 13251), (1893, 10185), (2037, 9465), (3155, 6111), (3395, 5679), (4365, 4417)]