21802240

素因数分解:

$2^8\times 5^1\times {\mathrm{17033}}^1$

素因数の和:17054

約数の個数: 36

約数和(自身を含む): 52226244

約数和(自身を除く): 30424004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 17033, 34066, 68132, 85165, 136264, 170330, 272528, 340660, 545056, 681320, 1090112, 1362640, 2180224, 2725280, 4360448, 5450560, 10901120, 21802240]

約数ペア:

[(1, 21802240), (2, 10901120), (4, 5450560), (5, 4360448), (8, 2725280), (10, 2180224), (16, 1362640), (20, 1090112), (32, 681320), (40, 545056), (64, 340660), (80, 272528), (128, 170330), (160, 136264), (256, 85165), (320, 68132), (640, 34066), (1280, 17033)]