20347821

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2050

約数の個数: 32

約数和(自身を含む): 33600000

約数和(自身を除く): 13252179

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 261, 351, 377, 783, 1131, 1999, 3393, 5997, 10179, 17991, 25987, 53973, 57971, 77961, 173913, 233883, 521739, 701649, 753623, 1565217, 2260869, 6782607, 20347821]

約数ペア:

[(1, 20347821), (3, 6782607), (9, 2260869), (13, 1565217), (27, 753623), (29, 701649), (39, 521739), (87, 233883), (117, 173913), (261, 77961), (351, 57971), (377, 53973), (783, 25987), (1131, 17991), (1999, 10179), (3393, 5997)]