28533813

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1223}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 47941632

約数和(自身を除く): 19407819

約数列:

[1, 3, 7, 11, 21, 33, 77, 101, 231, 303, 707, 1111, 1223, 2121, 3333, 3669, 7777, 8561, 13453, 23331, 25683, 40359, 94171, 123523, 282513, 370569, 864661, 1358753, 2593983, 4076259, 9511271, 28533813]

約数ペア:

[(1, 28533813), (3, 9511271), (7, 4076259), (11, 2593983), (21, 1358753), (33, 864661), (77, 370569), (101, 282513), (231, 123523), (303, 94171), (707, 40359), (1111, 25683), (1223, 23331), (2121, 13453), (3333, 8561), (3669, 7777)]