21494012

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{641}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 38504592

約数和(自身を除く): 17010580

約数列:

[1, 2, 4, 83, 101, 166, 202, 332, 404, 641, 1282, 2564, 8383, 16766, 33532, 53203, 64741, 106406, 129482, 212812, 258964, 5373503, 10747006, 21494012]

約数ペア:

[(1, 21494012), (2, 10747006), (4, 5373503), (83, 258964), (101, 212812), (166, 129482), (202, 106406), (332, 64741), (404, 53203), (641, 33532), (1282, 16766), (2564, 8383)]