21750318

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 49735296

約数和(自身を除く): 27984978

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 107, 138, 207, 214, 321, 414, 491, 642, 963, 982, 1473, 1926, 2461, 2946, 4419, 4922, 7383, 8838, 11293, 14766, 22149, 22586, 33879, 44298, 52537, 67758, 101637, 105074, 157611, 203274, 315222, 472833, 945666, 1208351, 2416702, 3625053, 7250106, 10875159, 21750318]

約数ペア:

[(1, 21750318), (2, 10875159), (3, 7250106), (6, 3625053), (9, 2416702), (18, 1208351), (23, 945666), (46, 472833), (69, 315222), (107, 203274), (138, 157611), (207, 105074), (214, 101637), (321, 67758), (414, 52537), (491, 44298), (642, 33879), (963, 22586), (982, 22149), (1473, 14766), (1926, 11293), (2461, 8838), (2946, 7383), (4419, 4922)]