21610240

素因数分解:

$2^8\times 5^1\times {\mathrm{16883}}^1$

素因数の和:16904

約数の個数: 36

約数和(自身を含む): 51766344

約数和(自身を除く): 30156104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16883, 33766, 67532, 84415, 135064, 168830, 270128, 337660, 540256, 675320, 1080512, 1350640, 2161024, 2701280, 4322048, 5402560, 10805120, 21610240]

約数ペア:

[(1, 21610240), (2, 10805120), (4, 5402560), (5, 4322048), (8, 2701280), (10, 2161024), (16, 1350640), (20, 1080512), (32, 675320), (40, 540256), (64, 337660), (80, 270128), (128, 168830), (160, 135064), (256, 84415), (320, 67532), (640, 33766), (1280, 16883)]