20826648

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2081}}^1$

素因数の和:2232

約数の個数: 48

約数和(自身を含む): 56838600

約数和(自身を除く): 36011952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2081, 2502, 3336, 4162, 5004, 6243, 8324, 10008, 12486, 16648, 18729, 24972, 37458, 49944, 74916, 149832, 289259, 578518, 867777, 1157036, 1735554, 2314072, 2603331, 3471108, 5206662, 6942216, 10413324, 20826648]

約数ペア:

[(1, 20826648), (2, 10413324), (3, 6942216), (4, 5206662), (6, 3471108), (8, 2603331), (9, 2314072), (12, 1735554), (18, 1157036), (24, 867777), (36, 578518), (72, 289259), (139, 149832), (278, 74916), (417, 49944), (556, 37458), (834, 24972), (1112, 18729), (1251, 16648), (1668, 12486), (2081, 10008), (2502, 8324), (3336, 6243), (4162, 5004)]