21183640

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2333}}^1$

素因数の和:2571

約数の個数: 32

約数和(自身を含む): 47893680

約数和(自身を除く): 26710040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 2333, 4540, 4666, 9080, 9332, 11665, 18664, 23330, 46660, 93320, 529591, 1059182, 2118364, 2647955, 4236728, 5295910, 10591820, 21183640]

約数ペア:

[(1, 21183640), (2, 10591820), (4, 5295910), (5, 4236728), (8, 2647955), (10, 2118364), (20, 1059182), (40, 529591), (227, 93320), (454, 46660), (908, 23330), (1135, 18664), (1816, 11665), (2270, 9332), (2333, 9080), (4540, 4666)]