28154385

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{9931}}^1$

素因数の和:9955

約数の個数: 40

約数和(自身を含む): 57685056

約数和(自身を除く): 29530671

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 9931, 29793, 49655, 69517, 89379, 148965, 208551, 268137, 347585, 446895, 625653, 804411, 1042755, 1340685, 1876959, 3128265, 4022055, 5630877, 9384795, 28154385]

約数ペア:

[(1, 28154385), (3, 9384795), (5, 5630877), (7, 4022055), (9, 3128265), (15, 1876959), (21, 1340685), (27, 1042755), (35, 804411), (45, 625653), (63, 446895), (81, 347585), (105, 268137), (135, 208551), (189, 148965), (315, 89379), (405, 69517), (567, 49655), (945, 29793), (2835, 9931)]