21217966

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4751}}^1$

素因数の和:4800

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19839314

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4466, 4751, 9502, 33257, 52261, 66514, 104522, 137779, 275558, 365827, 731654, 964453, 1515569, 1928906, 3031138, 10608983, 21217966]

約数ペア:

[(1, 21217966), (2, 10608983), (7, 3031138), (11, 1928906), (14, 1515569), (22, 964453), (29, 731654), (58, 365827), (77, 275558), (154, 137779), (203, 104522), (319, 66514), (406, 52261), (638, 33257), (2233, 9502), (4466, 4751)]