21678648

素因数分解:

$2^3\times 3^1\times {\mathrm{443}}^1\times {\mathrm{2039}}^1$

素因数の和:2491

約数の個数: 32

約数和(自身を含む): 54345600

約数和(自身を除く): 32666952

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 443, 886, 1329, 1772, 2039, 2658, 3544, 4078, 5316, 6117, 8156, 10632, 12234, 16312, 24468, 48936, 903277, 1806554, 2709831, 3613108, 5419662, 7226216, 10839324, 21678648]

約数ペア:

[(1, 21678648), (2, 10839324), (3, 7226216), (4, 5419662), (6, 3613108), (8, 2709831), (12, 1806554), (24, 903277), (443, 48936), (886, 24468), (1329, 16312), (1772, 12234), (2039, 10632), (2658, 8156), (3544, 6117), (4078, 5316)]