21375704

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{911}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 24589096

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 838, 911, 1676, 1822, 2933, 3352, 3644, 5866, 6377, 7288, 11732, 12754, 23464, 25508, 51016, 381709, 763418, 1526836, 2671963, 3053672, 5343926, 10687852, 21375704]

約数ペア:

[(1, 21375704), (2, 10687852), (4, 5343926), (7, 3053672), (8, 2671963), (14, 1526836), (28, 763418), (56, 381709), (419, 51016), (838, 25508), (911, 23464), (1676, 12754), (1822, 11732), (2933, 7288), (3352, 6377), (3644, 5866)]