1638236439

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{1861}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 2753674560

約数和(自身を除く): 1115438121

約数列:

[1, 3, 7, 9, 21, 63, 89, 157, 267, 471, 623, 801, 1099, 1413, 1861, 1869, 3297, 5583, 5607, 9891, 13027, 13973, 16749, 39081, 41919, 97811, 117243, 125757, 165629, 292177, 293433, 496887, 876531, 880299, 1159403, 1490661, 2045239, 2629593, 3478209, 6135717, 10434627, 18407151, 26003753, 78011259, 182026271, 234033777, 546078813, 1638236439]

約数ペア:

[(1, 1638236439), (3, 546078813), (7, 234033777), (9, 182026271), (21, 78011259), (63, 26003753), (89, 18407151), (157, 10434627), (267, 6135717), (471, 3478209), (623, 2629593), (801, 2045239), (1099, 1490661), (1413, 1159403), (1861, 880299), (1869, 876531), (3297, 496887), (5583, 293433), (5607, 292177), (9891, 165629), (13027, 125757), (13973, 117243), (16749, 97811), (39081, 41919)]