21228158

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 37822464

約数和(自身を除く): 16594306

約数列:

[1, 2, 7, 14, 37, 74, 107, 214, 259, 383, 518, 749, 766, 1498, 2681, 3959, 5362, 7918, 14171, 27713, 28342, 40981, 55426, 81962, 99197, 198394, 286867, 573734, 1516297, 3032594, 10614079, 21228158]

約数ペア:

[(1, 21228158), (2, 10614079), (7, 3032594), (14, 1516297), (37, 573734), (74, 286867), (107, 198394), (214, 99197), (259, 81962), (383, 55426), (518, 40981), (749, 28342), (766, 27713), (1498, 14171), (2681, 7918), (3959, 5362)]