21635888

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17117}}^1$

素因数の和:17204

約数の個数: 20

約数和(自身を含む): 42452640

約数和(自身を除く): 20816752

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17117, 34234, 68468, 136936, 273872, 1352243, 2704486, 5408972, 10817944, 21635888]

約数ペア:

[(1, 21635888), (2, 10817944), (4, 5408972), (8, 2704486), (16, 1352243), (79, 273872), (158, 136936), (316, 68468), (632, 34234), (1264, 17117)]