21982888

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{67021}}^1$

素因数の和:67068

約数の個数: 16

約数和(自身を含む): 42223860

約数和(自身を除く): 20240972

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 67021, 134042, 268084, 536168, 2747861, 5495722, 10991444, 21982888]

約数ペア:

[(1, 21982888), (2, 10991444), (4, 5495722), (8, 2747861), (41, 536168), (82, 268084), (164, 134042), (328, 67021)]