19993209

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{6211}}^1$

素因数の和:6280

約数の個数: 16

約数和(自身を含む): 28326720

約数和(自身を除く): 8333511

約数列:

[1, 3, 29, 37, 87, 111, 1073, 3219, 6211, 18633, 180119, 229807, 540357, 689421, 6664403, 19993209]

約数ペア:

[(1, 19993209), (3, 6664403), (29, 689421), (37, 540357), (87, 229807), (111, 180119), (1073, 18633), (3219, 6211)]