28880019

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1049}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 23535981

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 1049, 1197, 1311, 1449, 3059, 3147, 3933, 7343, 9177, 9441, 19931, 22029, 24127, 27531, 59793, 66087, 72381, 139517, 168889, 179379, 217143, 418551, 458413, 506667, 1255653, 1375239, 1520001, 3208891, 4125717, 9626673, 28880019]

約数ペア:

[(1, 28880019), (3, 9626673), (7, 4125717), (9, 3208891), (19, 1520001), (21, 1375239), (23, 1255653), (57, 506667), (63, 458413), (69, 418551), (133, 217143), (161, 179379), (171, 168889), (207, 139517), (399, 72381), (437, 66087), (483, 59793), (1049, 27531), (1197, 24127), (1311, 22029), (1449, 19931), (3059, 9441), (3147, 9177), (3933, 7343)]