21799455

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 35904000

約数和(自身を除く): 14104545

約数列:

[1, 3, 5, 15, 67, 109, 199, 201, 327, 335, 545, 597, 995, 1005, 1635, 2985, 7303, 13333, 21691, 21909, 36515, 39999, 65073, 66665, 108455, 109545, 199995, 325365, 1453297, 4359891, 7266485, 21799455]

約数ペア:

[(1, 21799455), (3, 7266485), (5, 4359891), (15, 1453297), (67, 325365), (109, 199995), (199, 109545), (201, 108455), (327, 66665), (335, 65073), (545, 39999), (597, 36515), (995, 21909), (1005, 21691), (1635, 13333), (2985, 7303)]