21801663

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{347}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 13276737

約数列:

[1, 3, 9, 13, 27, 39, 117, 179, 347, 351, 537, 1041, 1611, 2327, 3123, 4511, 4833, 6981, 9369, 13533, 20943, 40599, 62113, 62829, 121797, 186339, 559017, 807469, 1677051, 2422407, 7267221, 21801663]

約数ペア:

[(1, 21801663), (3, 7267221), (9, 2422407), (13, 1677051), (27, 807469), (39, 559017), (117, 186339), (179, 121797), (347, 62829), (351, 62113), (537, 40599), (1041, 20943), (1611, 13533), (2327, 9369), (3123, 6981), (4511, 4833)]