21044860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28439}}^1$

素因数の和:28485

約数の個数: 24

約数和(自身を含む): 45390240

約数和(自身を除く): 24345380

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28439, 56878, 113756, 142195, 284390, 568780, 1052243, 2104486, 4208972, 5261215, 10522430, 21044860]

約数ペア:

[(1, 21044860), (2, 10522430), (4, 5261215), (5, 4208972), (10, 2104486), (20, 1052243), (37, 568780), (74, 284390), (148, 142195), (185, 113756), (370, 56878), (740, 28439)]