28406727

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 15461433

約数列:

[1, 3, 9, 27, 41, 67, 123, 201, 369, 383, 603, 1107, 1149, 1809, 2747, 3447, 8241, 10341, 15703, 24723, 25661, 47109, 74169, 76983, 141327, 230949, 423981, 692847, 1052101, 3156303, 9468909, 28406727]

約数ペア:

[(1, 28406727), (3, 9468909), (9, 3156303), (27, 1052101), (41, 692847), (67, 423981), (123, 230949), (201, 141327), (369, 76983), (383, 74169), (603, 47109), (1107, 25661), (1149, 24723), (1809, 15703), (2747, 10341), (3447, 8241)]