21034240

素因数分解:

$2^8\times 5^1\times {\mathrm{16433}}^1$

素因数の和:16454

約数の個数: 36

約数和(自身を含む): 50386644

約数和(自身を除く): 29352404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16433, 32866, 65732, 82165, 131464, 164330, 262928, 328660, 525856, 657320, 1051712, 1314640, 2103424, 2629280, 4206848, 5258560, 10517120, 21034240]

約数ペア:

[(1, 21034240), (2, 10517120), (4, 5258560), (5, 4206848), (8, 2629280), (10, 2103424), (16, 1314640), (20, 1051712), (32, 657320), (40, 525856), (64, 328660), (80, 262928), (128, 164330), (160, 131464), (256, 82165), (320, 65732), (640, 32866), (1280, 16433)]