20199311991

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{373999}}^1$

素因数の和:374375

約数の個数: 24

約数和(自身を含む): 30980664000

約数和(自身を除く): 10781352009

約数列:

[1, 3, 9, 17, 51, 153, 353, 1059, 3177, 6001, 18003, 54009, 373999, 1121997, 3365991, 6357983, 19073949, 57221847, 132021647, 396064941, 1188194823, 2244367999, 6733103997, 20199311991]

約数ペア:

[(1, 20199311991), (3, 6733103997), (9, 2244367999), (17, 1188194823), (51, 396064941), (153, 132021647), (353, 57221847), (1059, 19073949), (3177, 6357983), (6001, 3365991), (18003, 1121997), (54009, 373999)]