21328288

素因数分解:

$2^5\times {\mathrm{601}}^1\times {\mathrm{1109}}^1$

素因数の和:1720

約数の個数: 24

約数和(自身を含む): 42097860

約数和(自身を除く): 20769572

約数列:

[1, 2, 4, 8, 16, 32, 601, 1109, 1202, 2218, 2404, 4436, 4808, 8872, 9616, 17744, 19232, 35488, 666509, 1333018, 2666036, 5332072, 10664144, 21328288]

約数ペア:

[(1, 21328288), (2, 10664144), (4, 5332072), (8, 2666036), (16, 1333018), (32, 666509), (601, 35488), (1109, 19232), (1202, 17744), (2218, 9616), (2404, 8872), (4436, 4808)]