21983860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47791}}^1$

素因数の和:47823

約数の個数: 24

約数和(自身を含む): 48174336

約数和(自身を除く): 26190476

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47791, 95582, 191164, 238955, 477910, 955820, 1099193, 2198386, 4396772, 5495965, 10991930, 21983860]

約数ペア:

[(1, 21983860), (2, 10991930), (4, 5495965), (5, 4396772), (10, 2198386), (20, 1099193), (23, 955820), (46, 477910), (92, 238955), (115, 191164), (230, 95582), (460, 47791)]