20719797

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2389}}^1$

素因数の和:2465

約数の個数: 24

約数和(自身を含む): 32695200

約数和(自身を除く): 11975403

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2389, 2891, 7167, 8673, 16723, 50169, 117061, 140951, 351183, 422853, 986657, 2959971, 6906599, 20719797]

約数ペア:

[(1, 20719797), (3, 6906599), (7, 2959971), (21, 986657), (49, 422853), (59, 351183), (147, 140951), (177, 117061), (413, 50169), (1239, 16723), (2389, 8673), (2891, 7167)]