21087804

素因数分解:

$2^2\times 3^1\times {\mathrm{439}}^1\times {\mathrm{4003}}^1$

素因数の和:4449

約数の個数: 24

約数和(自身を含む): 49329280

約数和(自身を除く): 28241476

約数列:

[1, 2, 3, 4, 6, 12, 439, 878, 1317, 1756, 2634, 4003, 5268, 8006, 12009, 16012, 24018, 48036, 1757317, 3514634, 5271951, 7029268, 10543902, 21087804]

約数ペア:

[(1, 21087804), (2, 10543902), (3, 7029268), (4, 5271951), (6, 3514634), (12, 1757317), (439, 48036), (878, 24018), (1317, 16012), (1756, 12009), (2634, 8006), (4003, 5268)]