28836801

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 20958399

約数列:

[1, 3, 7, 9, 21, 37, 63, 89, 111, 139, 259, 267, 333, 417, 623, 777, 801, 973, 1251, 1869, 2331, 2919, 3293, 5143, 5607, 8757, 9879, 12371, 15429, 23051, 29637, 36001, 37113, 46287, 69153, 86597, 108003, 111339, 207459, 259791, 324009, 457727, 779373, 1373181, 3204089, 4119543, 9612267, 28836801]

約数ペア:

[(1, 28836801), (3, 9612267), (7, 4119543), (9, 3204089), (21, 1373181), (37, 779373), (63, 457727), (89, 324009), (111, 259791), (139, 207459), (259, 111339), (267, 108003), (333, 86597), (417, 69153), (623, 46287), (777, 37113), (801, 36001), (973, 29637), (1251, 23051), (1869, 15429), (2331, 12371), (2919, 9879), (3293, 8757), (5143, 5607)]