21996418

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:282

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 13928702

約数列:

[1, 2, 23, 41, 46, 82, 107, 109, 214, 218, 943, 1886, 2461, 2507, 4387, 4469, 4922, 5014, 8774, 8938, 11663, 23326, 100901, 102787, 201802, 205574, 268249, 478183, 536498, 956366, 10998209, 21996418]

約数ペア:

[(1, 21996418), (2, 10998209), (23, 956366), (41, 536498), (46, 478183), (82, 268249), (107, 205574), (109, 201802), (214, 102787), (218, 100901), (943, 23326), (1886, 11663), (2461, 8938), (2507, 8774), (4387, 5014), (4469, 4922)]